1690794404 has 24 divisors (see below), whose sum is σ = 3187947840. Its totient is φ = 780011424.

The previous prime is 1690794397. The next prime is 1690794431. The reversal of 1690794404 is 4044970961.

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, 133457 + ... + 145575.

It is an arithmetic number, because the mean of its divisors is an integer number (132831160).

Almost surely, 2^1690794404 is an apocalyptic number.

It is an amenable number.

1690794404 is a deficient number, since it is larger than the sum of its proper divisors (1497153436).

1690794404 is a wasteful number, since it uses less digits than its factorization.

1690794404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14819 (or 14817 counting only the distinct ones).

The product of its (nonzero) digits is 217728, while the sum is 44.

The square root of 1690794404 is about 41119.2704701822. The cubic root of 1690794404 is about 1191.3250320808.

The spelling of 1690794404 in words is "one billion, six hundred ninety million, seven hundred ninety-four thousand, four hundred four".