72455404 has 12 divisors (see below), whose sum is σ = 144910864. Its totient is φ = 31052304.

The previous prime is 72455351. The next prime is 72455407. The reversal of 72455404 is 40455427.

72455404 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (72455407) 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, 1293819 + ... + 1293874.

Almost surely, 2^72455404 is an apocalyptic number.

It is an amenable number.

72455404 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

72455404 is a wasteful number, since it uses less digits than its factorization.

72455404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2587704 (or 2587702 counting only the distinct ones).

The product of its (nonzero) digits is 22400, while the sum is 31.

The square root of 72455404 is about 8512.0740128361. The cubic root of 72455404 is about 416.8920315414.

The spelling of 72455404 in words is "seventy-two million, four hundred fifty-five thousand, four hundred four".