45919388 has 12 divisors (see below), whose sum is σ = 81558792. Its totient is φ = 22616880.

The previous prime is 45919387. The next prime is 45919403. The reversal of 45919388 is 88391954.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45919381) 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, 85403 + ... + 85938.

It is an arithmetic number, because the mean of its divisors is an integer number (6796566).

Almost surely, 2^45919388 is an apocalyptic number.

It is an amenable number.

45919388 is a deficient number, since it is larger than the sum of its proper divisors (35639404).

45919388 is a wasteful number, since it uses less digits than its factorization.

45919388 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 171412 (or 171410 counting only the distinct ones).

The product of its digits is 311040, while the sum is 47.

The square root of 45919388 is about 6776.3845817663. The cubic root of 45919388 is about 358.0953627959.

The spelling of 45919388 in words is "forty-five million, nine hundred nineteen thousand, three hundred eighty-eight".