158894490 has 32 divisors (see below), whose sum is σ = 381977856. Its totient is φ = 42301760.

The previous prime is 158894479. The next prime is 158894497. The reversal of 158894490 is 94498851.

It is not an unprimeable number, because it can be changed into a prime (158894497) 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, 15535 + ... + 23645.

It is an arithmetic number, because the mean of its divisors is an integer number (11936808).

Almost surely, 2^158894490 is an apocalyptic number.

158894490 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

158894490 is an abundant number, since it is smaller than the sum of its proper divisors (223083366).

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

158894490 is a wasteful number, since it uses less digits than its factorization.

158894490 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8774.

The product of its (nonzero) digits is 414720, while the sum is 48.

The square root of 158894490 is about 12605.3357749804. The cubic root of 158894490 is about 541.6302925739.

The spelling of 158894490 in words is "one hundred fifty-eight million, eight hundred ninety-four thousand, four hundred ninety".