40641068 has 12 divisors (see below), whose sum is σ = 76592880. Its totient is φ = 18757392.

The previous prime is 40641053. The next prime is 40641079. The reversal of 40641068 is 86014604.

It is a self number, because there is not a number n which added to its sum of digits gives 40641068.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 390728 + ... + 390831.

It is an arithmetic number, because the mean of its divisors is an integer number (6382740).

Almost surely, 2^40641068 is an apocalyptic number.

It is an amenable number.

40641068 is a deficient number, since it is larger than the sum of its proper divisors (35951812).

40641068 is a wasteful number, since it uses less digits than its factorization.

40641068 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 781576 (or 781574 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 29.

The square root of 40641068 is about 6375.0347450034. The cubic root of 40641068 is about 343.8125330644.

The spelling of 40641068 in words is "forty million, six hundred forty-one thousand, sixty-eight".