3721339404 has 36 divisors (see below), whose sum is σ = 9560933200. Its totient is φ = 1220110560.

The previous prime is 3721339399. The next prime is 3721339409. The reversal of 3721339404 is 4049331273.

3721339404 is a `hidden beast` number, since 3 + 7 + 213 + 39 + 404 = 666.

3721339404 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (3721339399) and next prime (3721339409).

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (3721339409) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 845104 + ... + 849495.

Almost surely, 2^3721339404 is an apocalyptic number.

It is an amenable number.

3721339404 is an abundant number, since it is smaller than the sum of its proper divisors (5839593796).

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

3721339404 is a wasteful number, since it uses less digits than its factorization.

3721339404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1694670 (or 1694665 counting only the distinct ones).

The product of its (nonzero) digits is 54432, while the sum is 36.

The square root of 3721339404 is about 61002.7819365642. The cubic root of 3721339404 is about 1549.6481204695.

The spelling of 3721339404 in words is "three billion, seven hundred twenty-one million, three hundred thirty-nine thousand, four hundred four".