45439996 has 48 divisors (see below), whose sum is σ = 97445376. Its totient is φ = 18114624.

The previous prime is 45439987. The next prime is 45440009. The reversal of 45439996 is 69993454.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 22875 + ... + 24781.

It is an arithmetic number, because the mean of its divisors is an integer number (2030112).

Almost surely, 2^45439996 is an apocalyptic number.

45439996 is a gapful number since it is divisible by the number (46) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 45439996, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (48722688).

45439996 is an abundant number, since it is smaller than the sum of its proper divisors (52005380).

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

45439996 is a wasteful number, since it uses less digits than its factorization.

45439996 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1978 (or 1976 counting only the distinct ones).

The product of its digits is 1049760, while the sum is 49.

The square root of 45439996 is about 6740.9195218457. The cubic root of 45439996 is about 356.8448457075.

The spelling of 45439996 in words is "forty-five million, four hundred thirty-nine thousand, nine hundred ninety-six".