1690467056 has 20 divisors (see below), whose sum is σ = 3330795000. Its totient is φ = 830907072.

The previous prime is 1690467007. The next prime is 1690467067. The reversal of 1690467056 is 6507640961.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 1690466998 and 1690467016.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 894431 + ... + 896318.

It is an arithmetic number, because the mean of its divisors is an integer number (166539750).

Almost surely, 2^1690467056 is an apocalyptic number.

1690467056 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

1690467056 is a deficient number, since it is larger than the sum of its proper divisors (1640327944).

1690467056 is a wasteful number, since it uses less digits than its factorization.

1690467056 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1790816 (or 1790810 counting only the distinct ones).

The product of its (nonzero) digits is 272160, while the sum is 44.

The square root of 1690467056 is about 41115.2898080507. The cubic root of 1690467056 is about 1191.2481445468.

The spelling of 1690467056 in words is "one billion, six hundred ninety million, four hundred sixty-seven thousand, fifty-six".