40001304 has 32 divisors (see below), whose sum is σ = 114289920. Its totient is φ = 11428896.

The previous prime is 40001303. The next prime is 40001359. The reversal of 40001304 is 40310004.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a self number, because there is not a number n which added to its sum of digits gives 40001304.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40001303) 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, 118884 + ... + 119219.

It is an arithmetic number, because the mean of its divisors is an integer number (3571560).

Almost surely, 2^40001304 is an apocalyptic number.

It is an amenable number.

40001304 is an abundant number, since it is smaller than the sum of its proper divisors (74288616).

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

40001304 is a wasteful number, since it uses less digits than its factorization.

40001304 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 238119 (or 238115 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 12.

The square root of 40001304 is about 6324.6584097483. The cubic root of 40001304 is about 341.9989056427.

Adding to 40001304 its reverse (40310004), we get a palindrome (80311308).

The spelling of 40001304 in words is "forty million, one thousand, three hundred four".