3994180431 has 16 divisors (see below), whose sum is σ = 5453897856. Its totient is φ = 2598726816.

The previous prime is 3994180409. The next prime is 3994180433. The reversal of 3994180431 is 1340814993.

It is not a de Polignac number, because 3994180431 - 2¹³ = 3994172239 is a prime.

It is a super-2 number, since 2×3994180431² = 31906954630766691522, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3994180433) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 153441 + ... + 177573.

It is an arithmetic number, because the mean of its divisors is an integer number (340868616).

Almost surely, 2^3994180431 is an apocalyptic number.

3994180431 is a deficient number, since it is larger than the sum of its proper divisors (1459717425).

3994180431 is a wasteful number, since it uses less digits than its factorization.

3994180431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25462.

The product of its (nonzero) digits is 93312, while the sum is 42.

The square root of 3994180431 is about 63199.5287245087. The cubic root of 3994180431 is about 1586.6308458290.

The spelling of 3994180431 in words is "three billion, nine hundred ninety-four million, one hundred eighty thousand, four hundred thirty-one".