40451516 has 12 divisors (see below), whose sum is σ = 80903088. Its totient is φ = 17336352.

The previous prime is 40451441. The next prime is 40451527. The reversal of 40451516 is 61515404.

40451516 is an admirable number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 722321 + ... + 722376.

It is an arithmetic number, because the mean of its divisors is an integer number (6741924).

Almost surely, 2^40451516 is an apocalyptic number.

It is an amenable number.

40451516 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

40451516 is a wasteful number, since it uses less digits than its factorization.

40451516 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1444708 (or 1444706 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 26.

The square root of 40451516 is about 6360.1506271471. The cubic root of 40451516 is about 343.2771802050.

The spelling of 40451516 in words is "forty million, four hundred fifty-one thousand, five hundred sixteen".