40061916 has 18 divisors (see below), whose sum is σ = 101267712. Its totient is φ = 13353960.

The previous prime is 40061909. The next prime is 40061921. The reversal of 40061916 is 61916004.

40061916 is a `hidden beast` number, since 40 + 0 + 619 + 1 + 6 = 666.

It is a tau number, because it is divible by the number of its divisors (18).

It is a super-2 number, since 2×40061916² = 3209914227182112, which contains 22 as substring.

It is a Smith number, since the sum of its digits (27) coincides with the sum of the digits of its prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 40061916.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 556380 + ... + 556451.

It is an arithmetic number, because the mean of its divisors is an integer number (5625984).

Almost surely, 2^40061916 is an apocalyptic number.

It is an amenable number.

40061916 is an abundant number, since it is smaller than the sum of its proper divisors (61205796).

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

40061916 is a wasteful number, since it uses less digits than its factorization.

40061916 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1112841 (or 1112836 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 27.

The square root of 40061916 is about 6329.4483171916. The cubic root of 40061916 is about 342.1715564849.

The spelling of 40061916 in words is "forty million, sixty-one thousand, nine hundred sixteen".