72670452 has 12 divisors (see below), whose sum is σ = 169564416. Its totient is φ = 24223480.

The previous prime is 72670447. The next prime is 72670457. The reversal of 72670452 is 25407627.

It is an interprime number because it is at equal distance from previous prime (72670447) and next prime (72670457).

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72670457) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3027924 + ... + 3027947.

It is an arithmetic number, because the mean of its divisors is an integer number (14130368).

Almost surely, 2^72670452 is an apocalyptic number.

It is an amenable number.

72670452 is an abundant number, since it is smaller than the sum of its proper divisors (96893964).

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

72670452 is a wasteful number, since it uses less digits than its factorization.

72670452 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6055878 (or 6055876 counting only the distinct ones).

The product of its (nonzero) digits is 23520, while the sum is 33.

The square root of 72670452 is about 8524.6965928413. The cubic root of 72670452 is about 417.3040700412.

The spelling of 72670452 in words is "seventy-two million, six hundred seventy thousand, four hundred fifty-two".