158006840 has 32 divisors (see below), whose sum is σ = 376429680. Its totient is φ = 59484672.

The previous prime is 158006813. The next prime is 158006843. The reversal of 158006840 is 48600851.

It is a super-2 number, since 2×158006840² = 49932322973571200, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 158006797 and 158006806.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (158006843) 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, 115502 + ... + 116861.

Almost surely, 2^158006840 is an apocalyptic number.

158006840 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

158006840 is an abundant number, since it is smaller than the sum of its proper divisors (218422840).

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

158006840 is a wasteful number, since it uses less digits than its factorization.

158006840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 232391 (or 232387 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 32.

The square root of 158006840 is about 12570.0771676231. The cubic root of 158006840 is about 540.6198186992.

The spelling of 158006840 in words is "one hundred fifty-eight million, six thousand, eight hundred forty".