40437516 has 96 divisors (see below), whose sum is σ = 113799168. Its totient is φ = 10932480.

The previous prime is 40437511. The next prime is 40437533. The reversal of 40437516 is 61573404.

It is not an unprimeable number, because it can be changed into a prime (40437511) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 137866 + ... + 138158.

It is an arithmetic number, because the mean of its divisors is an integer number (1185408).

Almost surely, 2^40437516 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 40437516, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (56899584).

40437516 is an abundant number, since it is smaller than the sum of its proper divisors (73361652).

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

40437516 is a wasteful number, since it uses less digits than its factorization.

40437516 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 391 (or 389 counting only the distinct ones).

The product of its (nonzero) digits is 10080, while the sum is 30.

The square root of 40437516 is about 6359.0499290381. The cubic root of 40437516 is about 343.2375736543.

The spelling of 40437516 in words is "forty million, four hundred thirty-seven thousand, five hundred sixteen".