45294440 has 32 divisors (see below), whose sum is σ = 102552480. Its totient is φ = 18004032.

The previous prime is 45294427. The next prime is 45294449. The reversal of 45294440 is 4449254.

It is a junction number, because it is equal to n+sod(n) for n = 45294397 and 45294406.

It is not an unprimeable number, because it can be changed into a prime (45294449) 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, 3047 + ... + 9993.

It is an arithmetic number, because the mean of its divisors is an integer number (3204765).

Almost surely, 2^45294440 is an apocalyptic number.

45294440 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

45294440 is an abundant number, since it is smaller than the sum of its proper divisors (57258040).

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

45294440 is a wasteful number, since it uses less digits than its factorization.

45294440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7121 (or 7117 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 32.

The square root of 45294440 is about 6730.1144121033. The cubic root of 45294440 is about 356.4634161896.

The spelling of 45294440 in words is "forty-five million, two hundred ninety-four thousand, four hundred forty".