157444806 has 8 divisors (see below), whose sum is σ = 314889624. Its totient is φ = 52481600.

The previous prime is 157444787. The next prime is 157444813. The reversal of 157444806 is 608444751.

It is a sphenic number, since it is the product of 3 distinct primes.

157444806 is an admirable number.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 13120395 + ... + 13120406.

It is an arithmetic number, because the mean of its divisors is an integer number (39361203).

Almost surely, 2^157444806 is an apocalyptic number.

157444806 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

157444806 is a wasteful number, since it uses less digits than its factorization.

157444806 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26240806.

The product of its (nonzero) digits is 107520, while the sum is 39.

The square root of 157444806 is about 12547.7012237302. The cubic root of 157444806 is about 539.9780580934.

The spelling of 157444806 in words is "one hundred fifty-seven million, four hundred forty-four thousand, eight hundred six".