152439240 has 32 divisors (see below), whose sum is σ = 457318080. Its totient is φ = 40650432.

The previous prime is 152439233. The next prime is 152439241. The reversal of 152439240 is 42934251.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 152439198 and 152439207.

It is not an unprimeable number, because it can be changed into a prime (152439241) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 635044 + ... + 635283.

It is an arithmetic number, because the mean of its divisors is an integer number (14291190).

Almost surely, 2^152439240 is an apocalyptic number.

152439240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

152439240 is an abundant number, since it is smaller than the sum of its proper divisors (304878840).

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

152439240 is a wasteful number, since it uses less digits than its factorization.

152439240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1270341 (or 1270337 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 30.

The square root of 152439240 is about 12346.6286896464. The cubic root of 152439240 is about 534.1939006037.

The spelling of 152439240 in words is "one hundred fifty-two million, four hundred thirty-nine thousand, two hundred forty".