40556516 has 72 divisors (see below), whose sum is σ = 97062336. Its totient is φ = 14575680.

The previous prime is 40556513. The next prime is 40556533. The reversal of 40556516 is 61565504.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40556513) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 27305 + ... + 28751.

It is an arithmetic number, because the mean of its divisors is an integer number (1348088).

Almost surely, 2^40556516 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 40556516, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (48531168).

40556516 is an abundant number, since it is smaller than the sum of its proper divisors (56505820).

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

40556516 is a wasteful number, since it uses less digits than its factorization.

40556516 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1489 (or 1480 counting only the distinct ones).

The product of its (nonzero) digits is 18000, while the sum is 32.

The square root of 40556516 is about 6368.3997990076. The cubic root of 40556516 is about 343.5739384464.

The spelling of 40556516 in words is "forty million, five hundred fifty-six thousand, five hundred sixteen".