672557130 has 48 divisors (see below), whose sum is σ = 1998457344. Its totient is φ = 153727200.

The previous prime is 672557101. The next prime is 672557159. The reversal of 672557130 is 31755276.

672557130 is a `hidden beast` number, since 6 + 72 + 557 + 1 + 30 = 666.

It is an interprime number because it is at equal distance from previous prime (672557101) and next prime (672557159).

It is a super-2 number, since 2×672557130² = 904666186227673800, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 533146 + ... + 534405.

It is an arithmetic number, because the mean of its divisors is an integer number (41634528).

Almost surely, 2^672557130 is an apocalyptic number.

672557130 is an abundant number, since it is smaller than the sum of its proper divisors (1325900214).

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

672557130 is a wasteful number, since it uses less digits than its factorization.

672557130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1067571 (or 1067568 counting only the distinct ones).

The product of its (nonzero) digits is 44100, while the sum is 36.

The square root of 672557130 is about 25933.7064454736. The cubic root of 672557130 is about 876.1458207866.

The spelling of 672557130 in words is "six hundred seventy-two million, five hundred fifty-seven thousand, one hundred thirty".