45447390 has 48 divisors (see below), whose sum is σ = 118654848. Its totient is φ = 12068928.

The previous prime is 45447383. The next prime is 45447401. The reversal of 45447390 is 9374454.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 24019 + ... + 25841.

It is an arithmetic number, because the mean of its divisors is an integer number (2471976).

Almost surely, 2^45447390 is an apocalyptic number.

45447390 is an abundant number, since it is smaller than the sum of its proper divisors (73207458).

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

45447390 is a wasteful number, since it uses less digits than its factorization.

45447390 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2113 (or 2110 counting only the distinct ones).

The product of its (nonzero) digits is 60480, while the sum is 36.

The square root of 45447390 is about 6741.4679410348. The cubic root of 45447390 is about 356.8641999322.

The spelling of 45447390 in words is "forty-five million, four hundred forty-seven thousand, three hundred ninety".