1406639336 has 32 divisors (see below), whose sum is σ = 2789847360. Its totient is φ = 663518592.

The previous prime is 1406639329. The next prime is 1406639371. The reversal of 1406639336 is 6339366041.

It is a junction number, because it is equal to n+sod(n) for n = 1406639293 and 1406639302.

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, 38930 + ... + 65793.

It is an arithmetic number, because the mean of its divisors is an integer number (87182730).

Almost surely, 2^1406639336 is an apocalyptic number.

It is an amenable number.

1406639336 is a deficient number, since it is larger than the sum of its proper divisors (1383208024).

1406639336 is a wasteful number, since it uses less digits than its factorization.

1406639336 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 104825 (or 104821 counting only the distinct ones).

The product of its (nonzero) digits is 209952, while the sum is 41.

The square root of 1406639336 is about 37505.1907874097. The cubic root of 1406639336 is about 1120.4545710069.

The spelling of 1406639336 in words is "one billion, four hundred six million, six hundred thirty-nine thousand, three hundred thirty-six".