157023406 has 8 divisors (see below), whose sum is σ = 237963600. Its totient is φ = 77702208.

The previous prime is 157023379. The next prime is 157023409. The reversal of 157023406 is 604320751.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (157023409) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 404506 + ... + 404893.

It is an arithmetic number, because the mean of its divisors is an integer number (29745450).

Almost surely, 2^157023406 is an apocalyptic number.

157023406 is a deficient number, since it is larger than the sum of its proper divisors (80940194).

157023406 is an equidigital number, since it uses as much as digits as its factorization.

157023406 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 809498.

The product of its (nonzero) digits is 5040, while the sum is 28.

The square root of 157023406 is about 12530.8980524143. The cubic root of 157023406 is about 539.4958783992.

It can be divided in two parts, 1570 and 23406, that added together give a triangular number (24976 = T₂₂₃).

The spelling of 157023406 in words is "one hundred fifty-seven million, twenty-three thousand, four hundred six".