45622440 has 80 divisors (see below), whose sum is σ = 153352980. Its totient is φ = 12165120.

The previous prime is 45622433. The next prime is 45622457. The reversal of 45622440 is 4422654.

It can be written as a sum of positive squares in 2 ways, for example, as 45077796 + 544644 = 6714^2 + 738^2 .

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 3801 + ... + 10280.

Almost surely, 2^45622440 is an apocalyptic number.

45622440 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

45622440 is an abundant number, since it is smaller than the sum of its proper divisors (107730540).

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

45622440 is a wasteful number, since it uses less digits than its factorization.

45622440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14104 (or 14091 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 27.

The square root of 45622440 is about 6754.4385406931. The cubic root of 45622440 is about 357.3217916311.

The spelling of 45622440 in words is "forty-five million, six hundred twenty-two thousand, four hundred forty".