157642044 has 48 divisors (see below), whose sum is σ = 421817088. Its totient is φ = 44886528.

The previous prime is 157642039. The next prime is 157642049. The reversal of 157642044 is 440246751.

It is an interprime number because it is at equal distance from previous prime (157642039) and next prime (157642049).

It is a hoax number, since the sum of its digits (33) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 157641996 and 157642014.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (157642049) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 22732 + ... + 28844.

It is an arithmetic number, because the mean of its divisors is an integer number (8787856).

Almost surely, 2^157642044 is an apocalyptic number.

157642044 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

157642044 is an abundant number, since it is smaller than the sum of its proper divisors (264175044).

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

157642044 is a wasteful number, since it uses less digits than its factorization.

157642044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6434 (or 6432 counting only the distinct ones).

The product of its (nonzero) digits is 26880, while the sum is 33.

The square root of 157642044 is about 12555.5582910518. The cubic root of 157642044 is about 540.2034487169.

Adding to 157642044 its reverse (440246751), we get a palindrome (597888795).

The spelling of 157642044 in words is "one hundred fifty-seven million, six hundred forty-two thousand, forty-four".