40006264 has 8 divisors (see below), whose sum is σ = 75011760. Its totient is φ = 20003128.

The previous prime is 40006261. The next prime is 40006271. The reversal of 40006264 is 46260004.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40006261) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2500384 + ... + 2500399.

It is an arithmetic number, because the mean of its divisors is an integer number (9376470).

Almost surely, 2^40006264 is an apocalyptic number.

It is an amenable number.

40006264 is a deficient number, since it is larger than the sum of its proper divisors (35005496).

40006264 is a wasteful number, since it uses less digits than its factorization.

40006264 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5000789 (or 5000785 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 22.

The square root of 40006264 is about 6325.0505136323. The cubic root of 40006264 is about 342.0130405524.

Adding to 40006264 its reverse (46260004), we get a palindrome (86266268).

The spelling of 40006264 in words is "forty million, six thousand, two hundred sixty-four".