158469690 has 32 divisors (see below), whose sum is σ = 400345920. Its totient is φ = 40034304.

The previous prime is 158469679. The next prime is 158469691. The reversal of 158469690 is 96964851.

It is a super-2 number, since 2×158469690² = 50225285297392200, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (158469691) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 138439 + ... + 139578.

It is an arithmetic number, because the mean of its divisors is an integer number (12510810).

Almost surely, 2^158469690 is an apocalyptic number.

158469690 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

158469690 is an abundant number, since it is smaller than the sum of its proper divisors (241876230).

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

158469690 is a wasteful number, since it uses less digits than its factorization.

158469690 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 278046.

The product of its (nonzero) digits is 466560, while the sum is 48.

The square root of 158469690 is about 12588.4744905807. The cubic root of 158469690 is about 541.1471839506.

The spelling of 158469690 in words is "one hundred fifty-eight million, four hundred sixty-nine thousand, six hundred ninety".