1690426552 has 16 divisors (see below), whose sum is σ = 3355994160. Its totient is φ = 795494784.

The previous prime is 1690426541. The next prime is 1690426583. The reversal of 1690426552 is 2556240961.

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, 6214668 + ... + 6214939.

It is an arithmetic number, because the mean of its divisors is an integer number (209749635).

Almost surely, 2^1690426552 is an apocalyptic number.

It is an amenable number.

1690426552 is a deficient number, since it is larger than the sum of its proper divisors (1665567608).

1690426552 is a wasteful number, since it uses less digits than its factorization.

1690426552 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12429630 (or 12429626 counting only the distinct ones).

The product of its (nonzero) digits is 129600, while the sum is 40.

The square root of 1690426552 is about 41114.7972389504. The cubic root of 1690426552 is about 1191.2386302728.

The spelling of 1690426552 in words is "one billion, six hundred ninety million, four hundred twenty-six thousand, five hundred fifty-two".