1257416234 has 16 divisors (see below), whose sum is σ = 1992249600. Its totient is φ = 594276480.

The previous prime is 1257416227. The next prime is 1257416243. The reversal of 1257416234 is 4326147521.

It is a junction number, because it is equal to n+sod(n) for n = 1257416194 and 1257416203.

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, 233159 + ... + 238490.

It is an arithmetic number, because the mean of its divisors is an integer number (124515600).

Almost surely, 2^1257416234 is an apocalyptic number.

1257416234 is a deficient number, since it is larger than the sum of its proper divisors (734833366).

1257416234 is a wasteful number, since it uses less digits than its factorization.

1257416234 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 471725.

The product of its digits is 40320, while the sum is 35.

The square root of 1257416234 is about 35460.0653411694. The cubic root of 1257416234 is about 1079.3435179310.

The spelling of 1257416234 in words is "one billion, two hundred fifty-seven million, four hundred sixteen thousand, two hundred thirty-four".