45984340 has 24 divisors (see below), whose sum is σ = 99178632. Its totient is φ = 17896320.

The previous prime is 45984319. The next prime is 45984349. The reversal of 45984340 is 4348954.

It can be written as a sum of positive squares in 4 ways, for example, as 21659716 + 24324624 = 4654^2 + 4932^2 .

It is a super-2 number, since 2×45984340² = 4229119050471200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (37).

It is a self number, because there is not a number n which added to its sum of digits gives 45984340.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45984349) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 30331 + ... + 31810.

It is an arithmetic number, because the mean of its divisors is an integer number (4132443).

Almost surely, 2^45984340 is an apocalyptic number.

It is an amenable number.

45984340 is an abundant number, since it is smaller than the sum of its proper divisors (53194292).

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

45984340 is a wasteful number, since it uses less digits than its factorization.

45984340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62187 (or 62185 counting only the distinct ones).

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

The square root of 45984340 is about 6781.1754143364. The cubic root of 45984340 is about 358.2641226826.

The spelling of 45984340 in words is "forty-five million, nine hundred eighty-four thousand, three hundred forty".