1406664044 has 24 divisors (see below), whose sum is σ = 2473716000. Its totient is φ = 699897600.

The previous prime is 1406664041. The next prime is 1406664047. The reversal of 1406664044 is 4404666041.

It is an interprime number because it is at equal distance from previous prime (1406664041) and next prime (1406664047).

It is a junction number, because it is equal to n+sod(n) for n = 1406663995 and 1406664013.

It is not an unprimeable number, because it can be changed into a prime (1406664041) 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, 1170644 + ... + 1171844.

It is an arithmetic number, because the mean of its divisors is an integer number (103071500).

Almost surely, 2^1406664044 is an apocalyptic number.

It is an amenable number.

1406664044 is a deficient number, since it is larger than the sum of its proper divisors (1067051956).

1406664044 is a wasteful number, since it uses less digits than its factorization.

1406664044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2393 (or 2391 counting only the distinct ones).

The product of its (nonzero) digits is 55296, while the sum is 35.

The square root of 1406664044 is about 37505.5201803681. The cubic root of 1406664044 is about 1120.4611313309.

The spelling of 1406664044 in words is "one billion, four hundred six million, six hundred sixty-four thousand, forty-four".