672214440 has 32 divisors (see below), whose sum is σ = 2016643680. Its totient is φ = 179257152.

The previous prime is 672214363. The next prime is 672214463. The reversal of 672214440 is 44412276.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 672214398 and 672214407.

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 7 ways as a sum of consecutive naturals, for example, 2800774 + ... + 2801013.

It is an arithmetic number, because the mean of its divisors is an integer number (63020115).

Almost surely, 2^672214440 is an apocalyptic number.

672214440 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

672214440 is an abundant number, since it is smaller than the sum of its proper divisors (1344429240).

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

672214440 is a wasteful number, since it uses less digits than its factorization.

672214440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5601801 (or 5601797 counting only the distinct ones).

The product of its (nonzero) digits is 10752, while the sum is 30.

The square root of 672214440 is about 25927.0985650149. The cubic root of 672214440 is about 875.9969871250.

The spelling of 672214440 in words is "six hundred seventy-two million, two hundred fourteen thousand, four hundred forty".