45384240 has 80 divisors (see below), whose sum is σ = 153490176. Its totient is φ = 11001600.

The previous prime is 45384239. The next prime is 45384277. The reversal of 45384240 is 4248354.

It is a tau number, because it is divible by the number of its divisors (80).

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 45384198 and 45384207.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5956 + ... + 11235.

Almost surely, 2^45384240 is an apocalyptic number.

45384240 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

45384240 is an abundant number, since it is smaller than the sum of its proper divisors (108105936).

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

45384240 is a wasteful number, since it uses less digits than its factorization.

45384240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17218 (or 17212 counting only the distinct ones).

The product of its (nonzero) digits is 15360, while the sum is 30.

The square root of 45384240 is about 6736.7826148689. The cubic root of 45384240 is about 356.6988334844.

It can be divided in two parts, 4538 and 4240, that added together give a palindrome (8778).

The spelling of 45384240 in words is "forty-five million, three hundred eighty-four thousand, two hundred forty".