45474390 has 48 divisors (see below), whose sum is σ = 127331568. Its totient is φ = 11193408.

The previous prime is 45474367. The next prime is 45474419. The reversal of 45474390 is 9347454.

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, 18264 + ... + 20603.

It is an arithmetic number, because the mean of its divisors is an integer number (2652741).

Almost surely, 2^45474390 is an apocalyptic number.

45474390 is an abundant number, since it is smaller than the sum of its proper divisors (81857178).

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

45474390 is a wasteful number, since it uses less digits than its factorization.

45474390 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38893 (or 38890 counting only the distinct ones).

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

The square root of 45474390 is about 6743.4701749174. The cubic root of 45474390 is about 356.9348561784.

The spelling of 45474390 in words is "forty-five million, four hundred seventy-four thousand, three hundred ninety".