158782420 has 24 divisors (see below), whose sum is σ = 333988704. Its totient is φ = 63409056.

The previous prime is 158782369. The next prime is 158782427. The reversal of 158782420 is 24287851.

It is a hoax number, since the sum of its digits (37) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 158782420.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (158782427) 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, 6687 + ... + 19033.

It is an arithmetic number, because the mean of its divisors is an integer number (13916196).

Almost surely, 2^158782420 is an apocalyptic number.

158782420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

158782420 is an abundant number, since it is smaller than the sum of its proper divisors (175206284).

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

158782420 is a wasteful number, since it uses less digits than its factorization.

158782420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12999 (or 12997 counting only the distinct ones).

The product of its (nonzero) digits is 35840, while the sum is 37.

The square root of 158782420 is about 12600.8896511318. The cubic root of 158782420 is about 541.5029233924.

The spelling of 158782420 in words is "one hundred fifty-eight million, seven hundred eighty-two thousand, four hundred twenty".