672307452 has 30 divisors (see below), whose sum is σ = 1757545328. Its totient is φ = 224102376.

The previous prime is 672307439. The next prime is 672307469. The reversal of 672307452 is 254703276.

It is a happy number.

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

It is an alternating number because its digits alternate between even and odd.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 1037188 + ... + 1037835.

Almost surely, 2^672307452 is an apocalyptic number.

It is an amenable number.

672307452 is an abundant number, since it is smaller than the sum of its proper divisors (1085237876).

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

672307452 is a wasteful number, since it uses less digits than its factorization.

672307452 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2075039 (or 2075028 counting only the distinct ones).

The product of its (nonzero) digits is 70560, while the sum is 36.

The square root of 672307452 is about 25928.8922246979. The cubic root of 672307452 is about 876.0373881584.

The spelling of 672307452 in words is "six hundred seventy-two million, three hundred seven thousand, four hundred fifty-two".