157286646 has 48 divisors (see below), whose sum is σ = 372612240. Its totient is φ = 47554560.

The previous prime is 157286641. The next prime is 157286671. The reversal of 157286646 is 646682751.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (157286641) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 151746 + ... + 152778.

It is an arithmetic number, because the mean of its divisors is an integer number (7762755).

Almost surely, 2^157286646 is an apocalyptic number.

157286646 is an abundant number, since it is smaller than the sum of its proper divisors (215325594).

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

157286646 is a wasteful number, since it uses less digits than its factorization.

157286646 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1821 (or 1818 counting only the distinct ones).

The product of its digits is 483840, while the sum is 45.

The square root of 157286646 is about 12541.3972905733. The cubic root of 157286646 is about 539.7971872117.

The spelling of 157286646 in words is "one hundred fifty-seven million, two hundred eighty-six thousand, six hundred forty-six".