672448812 has 24 divisors (see below), whose sum is σ = 1793197056. Its totient is φ = 192128208.

The previous prime is 672448747. The next prime is 672448837. The reversal of 672448812 is 218844276.

It is a super-2 number, since 2×672448812² = 904374809520422688, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (42).

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, 4002588 + ... + 4002755.

It is an arithmetic number, because the mean of its divisors is an integer number (74716544).

Almost surely, 2^672448812 is an apocalyptic number.

It is an amenable number.

672448812 is an abundant number, since it is smaller than the sum of its proper divisors (1120748244).

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

672448812 is a wasteful number, since it uses less digits than its factorization.

672448812 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8005357 (or 8005355 counting only the distinct ones).

The product of its digits is 172032, while the sum is 42.

The square root of 672448812 is about 25931.6179981119. The cubic root of 672448812 is about 876.0987826719.

The spelling of 672448812 in words is "six hundred seventy-two million, four hundred forty-eight thousand, eight hundred twelve".