45043400 has 24 divisors (see below), whose sum is σ = 104726370. Its totient is φ = 18017280.

The previous prime is 45043399. The next prime is 45043417. The reversal of 45043400 is 434054.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 26604964 + 18438436 = 5158^2 + 4294^2 .

It is a Harshad number since it is a multiple of its sum of digits (20).

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 112409 + ... + 112808.

Almost surely, 2^45043400 is an apocalyptic number.

45043400 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

45043400 is an abundant number, since it is smaller than the sum of its proper divisors (59682970).

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

45043400 is a wasteful number, since it uses less digits than its factorization.

45043400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 225233 (or 225224 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 20.

The square root of 45043400 is about 6711.4379979256. The cubic root of 45043400 is about 355.8036412410.

Adding to 45043400 its reverse (434054), we get a palindrome (45477454).

The spelling of 45043400 in words is "forty-five million, forty-three thousand, four hundred".