45309448 has 16 divisors (see below), whose sum is σ = 88649280. Its totient is φ = 21669648.

The previous prime is 45309443. The next prime is 45309461. The reversal of 45309448 is 84490354.

It is not an unprimeable number, because it can be changed into a prime (45309443) 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, 122940 + ... + 123307.

It is an arithmetic number, because the mean of its divisors is an integer number (5540580).

Almost surely, 2^45309448 is an apocalyptic number.

It is an amenable number.

45309448 is a deficient number, since it is larger than the sum of its proper divisors (43339832).

45309448 is a wasteful number, since it uses less digits than its factorization.

45309448 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 246276 (or 246272 counting only the distinct ones).

The product of its (nonzero) digits is 69120, while the sum is 37.

The square root of 45309448 is about 6731.2293082319. The cubic root of 45309448 is about 356.5027824060.

The spelling of 45309448 in words is "forty-five million, three hundred nine thousand, four hundred forty-eight".