40064814 has 16 divisors (see below), whose sum is σ = 89033040. Its totient is φ = 13354920.

The previous prime is 40064813. The next prime is 40064833. The reversal of 40064814 is 41846004.

40064814 is a `hidden beast` number, since 4 + 0 + 0 + 648 + 14 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40064813) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 370917 + ... + 371024.

It is an arithmetic number, because the mean of its divisors is an integer number (5564565).

Almost surely, 2^40064814 is an apocalyptic number.

40064814 is an abundant number, since it is smaller than the sum of its proper divisors (48968226).

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

40064814 is a wasteful number, since it uses less digits than its factorization.

40064814 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 741952 (or 741946 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 27.

The square root of 40064814 is about 6329.6772429564. The cubic root of 40064814 is about 342.1798069578.

The spelling of 40064814 in words is "forty million, sixty-four thousand, eight hundred fourteen".