3944738402 has 16 divisors (see below), whose sum is σ = 6472628352. Its totient is φ = 1788173520.

The previous prime is 3944738401. The next prime is 3944738443. The reversal of 3944738402 is 2048374493.

It is a super-2 number, since 2×3944738402² = 31121922120427027208, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (3944738401) 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, 236213 + ... + 252360.

It is an arithmetic number, because the mean of its divisors is an integer number (404539272).

Almost surely, 2^3944738402 is an apocalyptic number.

3944738402 is a deficient number, since it is larger than the sum of its proper divisors (2527889950).

3944738402 is a wasteful number, since it uses less digits than its factorization.

3944738402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 488953.

The product of its (nonzero) digits is 580608, while the sum is 44.

The square root of 3944738402 is about 62807.1524748575. The cubic root of 3944738402 is about 1580.0569335357.

The spelling of 3944738402 in words is "three billion, nine hundred forty-four million, seven hundred thirty-eight thousand, four hundred two".