158840680 has 32 divisors (see below), whose sum is σ = 360939240. Its totient is φ = 62905600.

The previous prime is 158840663. The next prime is 158840681. The reversal of 158840680 is 86048851.

It can be written as a sum of positive squares in 4 ways, for example, as 158810404 + 30276 = 12602^2 + 174^2 .

It is a Harshad number since it is a multiple of its sum of digits (40).

It is not an unprimeable number, because it can be changed into a prime (158840681) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15619 + ... + 23698.

Almost surely, 2^158840680 is an apocalyptic number.

158840680 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

158840680 is an abundant number, since it is smaller than the sum of its proper divisors (202098560).

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

158840680 is a wasteful number, since it uses less digits than its factorization.

158840680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39429 (or 39425 counting only the distinct ones).

The product of its (nonzero) digits is 61440, while the sum is 40.

The square root of 158840680 is about 12603.2011806525. The cubic root of 158840680 is about 541.5691442050.

The spelling of 158840680 in words is "one hundred fifty-eight million, eight hundred forty thousand, six hundred eighty".