157794742 has 16 divisors (see below), whose sum is σ = 279833760. Its totient is φ = 65294208.

The previous prime is 157794709. The next prime is 157794757. The reversal of 157794742 is 247497751.

It is a junction number, because it is equal to n+sod(n) for n = 157794692 and 157794701.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 193923 + ... + 194734.

It is an arithmetic number, because the mean of its divisors is an integer number (17489610).

Almost surely, 2^157794742 is an apocalyptic number.

157794742 is a deficient number, since it is larger than the sum of its proper divisors (122039018).

157794742 is a wasteful number, since it uses less digits than its factorization.

157794742 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 388695.

The product of its digits is 493920, while the sum is 46.

The square root of 157794742 is about 12561.6377116999. The cubic root of 157794742 is about 540.3778128751.

The spelling of 157794742 in words is "one hundred fifty-seven million, seven hundred ninety-four thousand, seven hundred forty-two".