1408690680 has 32 divisors (see below), whose sum is σ = 4226072400. Its totient is φ = 375650816.

The previous prime is 1408690643. The next prime is 1408690711. The reversal of 1408690680 is 860968041.

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, 5869425 + ... + 5869664.

Almost surely, 2^1408690680 is an apocalyptic number.

1408690680 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1408690680 is an abundant number, since it is smaller than the sum of its proper divisors (2817381720).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1408690680 is a wasteful number, since it uses less digits than its factorization.

1408690680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11739103 (or 11739099 counting only the distinct ones).

The product of its (nonzero) digits is 82944, while the sum is 42.

The square root of 1408690680 is about 37532.5282921361. The cubic root of 1408690680 is about 1120.9989705351.

The spelling of 1408690680 in words is "one billion, four hundred eight million, six hundred ninety thousand, six hundred eighty".