256070673 has 32 divisors (see below), whose sum is σ = 392670720. Its totient is φ = 164799360.

The previous prime is 256070627. The next prime is 256070693. The reversal of 256070673 is 376070652.

It is a happy number.

It is not a de Polignac number, because 256070673 - 2⁸ = 256070417 is a prime.

It is not an unprimeable number, because it can be changed into a prime (256070603) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 135928 + ... + 137798.

It is an arithmetic number, because the mean of its divisors is an integer number (12270960).

Almost surely, 2^256070673 is an apocalyptic number.

It is an amenable number.

256070673 is a deficient number, since it is larger than the sum of its proper divisors (136600047).

256070673 is a wasteful number, since it uses less digits than its factorization.

256070673 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2054 (or 2048 counting only the distinct ones).

The product of its (nonzero) digits is 52920, while the sum is 36.

The square root of 256070673 is about 16002.2083788457. The cubic root of 256070673 is about 635.0188458250.

The spelling of 256070673 in words is "two hundred fifty-six million, seventy thousand, six hundred seventy-three".