45214440 has 32 divisors (see below), whose sum is σ = 135643680. Its totient is φ = 12057152.

The previous prime is 45214439. The next prime is 45214469. The reversal of 45214440 is 4441254.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a self number, because there is not a number n which added to its sum of digits gives 45214440.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 188274 + ... + 188513.

It is an arithmetic number, because the mean of its divisors is an integer number (4238865).

Almost surely, 2^45214440 is an apocalyptic number.

45214440 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

45214440 is an abundant number, since it is smaller than the sum of its proper divisors (90429240).

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

45214440 is a wasteful number, since it uses less digits than its factorization.

45214440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 376801 (or 376797 counting only the distinct ones).

The product of its (nonzero) digits is 2560, while the sum is 24.

The square root of 45214440 is about 6724.1683500638. The cubic root of 45214440 is about 356.2534280987.

Adding to 45214440 its reverse (4441254), we get a palindrome (49655694).

It can be divided in two parts, 45214 and 440, that added together give a palindrome (45654).

The spelling of 45214440 in words is "forty-five million, two hundred fourteen thousand, four hundred forty".