40401204 has 12 divisors (see below), whose sum is σ = 94269504. Its totient is φ = 13467064.

The previous prime is 40401187. The next prime is 40401217. The reversal of 40401204 is 40210404.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

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, 1683372 + ... + 1683395.

It is an arithmetic number, because the mean of its divisors is an integer number (7855792).

Almost surely, 2^40401204 is an apocalyptic number.

It is an amenable number.

40401204 is an abundant number, since it is smaller than the sum of its proper divisors (53868300).

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

40401204 is a wasteful number, since it uses less digits than its factorization.

40401204 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3366774 (or 3366772 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 15.

The square root of 40401204 is about 6356.1941442974. The cubic root of 40401204 is about 343.1348029555.

Adding to 40401204 its reverse (40210404), we get a palindrome (80611608).

The spelling of 40401204 in words is "forty million, four hundred one thousand, two hundred four".