40261668 has 24 divisors (see below), whose sum is σ = 94080672. Its totient is φ = 13401024.

The previous prime is 40261651. The next prime is 40261679. The reversal of 40261668 is 86616204.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7896 + ... + 11952.

It is an arithmetic number, because the mean of its divisors is an integer number (3920028).

Almost surely, 2^40261668 is an apocalyptic number.

It is an amenable number.

40261668 is an abundant number, since it is smaller than the sum of its proper divisors (53819004).

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

40261668 is a wasteful number, since it uses less digits than its factorization.

40261668 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4891 (or 4889 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 33.

The square root of 40261668 is about 6345.2082708135. The cubic root of 40261668 is about 342.7393123866.

The spelling of 40261668 in words is "forty million, two hundred sixty-one thousand, six hundred sixty-eight".