2279631406 has 16 divisors (see below), whose sum is σ = 3772299888. Its totient is φ = 1026475200.

The previous prime is 2279631379. The next prime is 2279631433. The reversal of 2279631406 is 6041369722.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (2279631379) and next prime (2279631433).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1068180 + ... + 1070311.

It is an arithmetic number, because the mean of its divisors is an integer number (235768743).

Almost surely, 2^2279631406 is an apocalyptic number.

2279631406 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

2279631406 is a deficient number, since it is larger than the sum of its proper divisors (1492668482).

2279631406 is a wasteful number, since it uses less digits than its factorization.

2279631406 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2138547.

The product of its (nonzero) digits is 108864, while the sum is 40.

The square root of 2279631406 is about 47745.4857133112. The cubic root of 2279631406 is about 1316.0979435023.

The spelling of 2279631406 in words is "two billion, two hundred seventy-nine million, six hundred thirty-one thousand, four hundred six".