157789406 has 16 divisors (see below), whose sum is σ = 248300640. Its totient is φ = 75099360.

The previous prime is 157789399. The next prime is 157789409. The reversal of 157789406 is 604987751.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (157789409) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15041 + ... + 23276.

It is an arithmetic number, because the mean of its divisors is an integer number (15518790).

Almost surely, 2^157789406 is an apocalyptic number.

157789406 is a deficient number, since it is larger than the sum of its proper divisors (90511234).

157789406 is a wasteful number, since it uses less digits than its factorization.

157789406 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38419.

The product of its (nonzero) digits is 423360, while the sum is 47.

The square root of 157789406 is about 12561.4253172162. The cubic root of 157789406 is about 540.3717216529.

The spelling of 157789406 in words is "one hundred fifty-seven million, seven hundred eighty-nine thousand, four hundred six".