1673123256 has 64 divisors (see below), whose sum is σ = 5311507200. Its totient is φ = 478034784.

The previous prime is 1673123209. The next prime is 1673123269. The reversal of 1673123256 is 6523213761.

1673123256 is a `hidden beast` number, since 16 + 7 + 312 + 325 + 6 = 666.

It is a super-5 number, since 5×1673123256⁵ (a number of 47 digits) contains 55555 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 1673123256.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 551770 + ... + 554793.

It is an arithmetic number, because the mean of its divisors is an integer number (82992300).

Almost surely, 2^1673123256 is an apocalyptic number.

It is an amenable number.

1673123256 is an abundant number, since it is smaller than the sum of its proper divisors (3638383944).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1673123256 is a wasteful number, since it uses less digits than its factorization.

1673123256 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1106585 (or 1106575 counting only the distinct ones).

The product of its digits is 45360, while the sum is 36.

The square root of 1673123256 is about 40903.8293561862. The cubic root of 1673123256 is about 1187.1601553233.

The spelling of 1673123256 in words is "one billion, six hundred seventy-three million, one hundred twenty-three thousand, two hundred fifty-six".