158706840 has 32 divisors (see below), whose sum is σ = 476120880. Its totient is φ = 42321792.

The previous prime is 158706839. The next prime is 158706871. The reversal of 158706840 is 48607851.

158706840 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×158706840² = 50375722125571200, which contains 22 as substring.

It is a Smith number, since the sum of its digits (39) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 661159 + ... + 661398.

Almost surely, 2^158706840 is an apocalyptic number.

158706840 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

158706840 is an abundant number, since it is smaller than the sum of its proper divisors (317414040).

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

158706840 is a wasteful number, since it uses less digits than its factorization.

158706840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1322571 (or 1322567 counting only the distinct ones).

The product of its (nonzero) digits is 53760, while the sum is 39.

The square root of 158706840 is about 12597.8902995700. The cubic root of 158706840 is about 541.4169917837.

The spelling of 158706840 in words is "one hundred fifty-eight million, seven hundred six thousand, eight hundred forty".