45981384 has 16 divisors (see below), whose sum is σ = 114953520. Its totient is φ = 15327120.

The previous prime is 45981371. The next prime is 45981389. The reversal of 45981384 is 48318954.

It is a super-2 number, since 2×45981384² = 4228575349110912, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (45981389) 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, 957922 + ... + 957969.

It is an arithmetic number, because the mean of its divisors is an integer number (7184595).

Almost surely, 2^45981384 is an apocalyptic number.

It is an amenable number.

45981384 is an abundant number, since it is smaller than the sum of its proper divisors (68972136).

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

45981384 is a wasteful number, since it uses less digits than its factorization.

45981384 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1915900 (or 1915896 counting only the distinct ones).

The product of its digits is 138240, while the sum is 42.

The square root of 45981384 is about 6780.9574545192. The cubic root of 45981384 is about 358.2564457833.

The spelling of 45981384 in words is "forty-five million, nine hundred eighty-one thousand, three hundred eighty-four".