6406403272 has 16 divisors (see below), whose sum is σ = 12181190400. Its totient is φ = 3158085840.

The previous prime is 6406403257. The next prime is 6406403287. The reversal of 6406403272 is 2723046046.

It is an interprime number because it is at equal distance from previous prime (6406403257) and next prime (6406403287).

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, 5638872 + ... + 5640007.

It is an arithmetic number, because the mean of its divisors is an integer number (761324400).

Almost surely, 2^6406403272 is an apocalyptic number.

It is an amenable number.

6406403272 is a deficient number, since it is larger than the sum of its proper divisors (5774787128).

6406403272 is a wasteful number, since it uses less digits than its factorization.

6406403272 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11278956 (or 11278952 counting only the distinct ones).

The product of its (nonzero) digits is 48384, while the sum is 34.

The square root of 6406403272 is about 80040.0104447769. The cubic root of 6406403272 is about 1857.2545219688.

The spelling of 6406403272 in words is "six billion, four hundred six million, four hundred three thousand, two hundred seventy-two".