158466240 has 112 divisors (see below), whose sum is σ = 559064160. Its totient is φ = 42255360.

The previous prime is 158466239. The next prime is 158466241. The reversal of 158466240 is 42664851.

158466240 is a `hidden beast` number, since 158 + 466 + 2 + 40 = 666.

It is an interprime number because it is at equal distance from previous prime (158466239) and next prime (158466241).

It is a super-2 number, since 2×158466240² = 50223098439475200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 158466195 and 158466204.

It is not an unprimeable number, because it can be changed into a prime (158466241) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 531 + ... + 17810.

Almost surely, 2^158466240 is an apocalyptic number.

158466240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 158466240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (279532080).

158466240 is an abundant number, since it is smaller than the sum of its proper divisors (400597920).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

158466240 is a wasteful number, since it uses less digits than its factorization.

158466240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18367 (or 18351 counting only the distinct ones).

The product of its (nonzero) digits is 46080, while the sum is 36.

The square root of 158466240 is about 12588.3374597283. The cubic root of 158466240 is about 541.1432568667.

The spelling of 158466240 in words is "one hundred fifty-eight million, four hundred sixty-six thousand, two hundred forty".