1690737052 has 12 divisors (see below), whose sum is σ = 3038757400. Its totient is φ = 822520656.

The previous prime is 1690737043. The next prime is 1690737053. The reversal of 1690737052 is 2507370961.

It is a junction number, because it is equal to n+sod(n) for n = 1690736996 and 1690737014.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1690737053) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5711802 + ... + 5712097.

Almost surely, 2^1690737052 is an apocalyptic number.

It is an amenable number.

1690737052 is a deficient number, since it is larger than the sum of its proper divisors (1348020348).

1690737052 is a wasteful number, since it uses less digits than its factorization.

1690737052 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11423940 (or 11423938 counting only the distinct ones).

The product of its (nonzero) digits is 79380, while the sum is 40.

The square root of 1690737052 is about 41118.5730783547. The cubic root of 1690737052 is about 1191.3115619539.

The spelling of 1690737052 in words is "one billion, six hundred ninety million, seven hundred thirty-seven thousand, fifty-two".