45618399 has 12 divisors (see below), whose sum is σ = 67426216. Its totient is φ = 29704752.

The previous prime is 45618389. The next prime is 45618401. The reversal of 45618399 is 99381654.

It is a happy number.

45618399 is a `hidden beast` number, since 4 + 561 + 83 + 9 + 9 = 666.

It is not a de Polignac number, because 45618399 - 2¹⁶ = 45552863 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45618379) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 58552 + ... + 59325.

Almost surely, 2^45618399 is an apocalyptic number.

45618399 is a deficient number, since it is larger than the sum of its proper divisors (21807817).

45618399 is a wasteful number, since it uses less digits than its factorization.

45618399 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 117926 (or 117923 counting only the distinct ones).

The product of its digits is 233280, while the sum is 45.

The square root of 45618399 is about 6754.1393974362. The cubic root of 45618399 is about 357.3112414136.

The spelling of 45618399 in words is "forty-five million, six hundred eighteen thousand, three hundred ninety-nine".