3964940431 has 8 divisors (see below), whose sum is σ = 4058334720. Its totient is φ = 3871600152.

The previous prime is 3964940411. The next prime is 3964940437. The reversal of 3964940431 is 1340494693.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 3964940431 - 2⁷ = 3964940303 is a prime.

It is a super-2 number, since 2×3964940431² = 31441505242756931522, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (43).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3964940437) 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, 161346 + ... + 184288.

It is an arithmetic number, because the mean of its divisors is an integer number (507291840).

Almost surely, 2^3964940431 is an apocalyptic number.

3964940431 is a deficient number, since it is larger than the sum of its proper divisors (93394289).

3964940431 is a wasteful number, since it uses less digits than its factorization.

3964940431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27005.

The product of its (nonzero) digits is 279936, while the sum is 43.

The square root of 3964940431 is about 62967.7729556954. The cubic root of 3964940431 is about 1582.7496359360.

The spelling of 3964940431 in words is "three billion, nine hundred sixty-four million, nine hundred forty thousand, four hundred thirty-one".