1690183742 has 32 divisors (see below), whose sum is σ = 2828256480. Its totient is φ = 752169600.

The previous prime is 1690183739. The next prime is 1690183751. The reversal of 1690183742 is 2473810961.

It is a super-2 number, since 2×1690183742² = 5713442163442245128, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1690183742.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 980093 + ... + 981815.

It is an arithmetic number, because the mean of its divisors is an integer number (88383015).

Almost surely, 2^1690183742 is an apocalyptic number.

1690183742 is a deficient number, since it is larger than the sum of its proper divisors (1138072738).

1690183742 is a wasteful number, since it uses less digits than its factorization.

1690183742 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3068.

The product of its (nonzero) digits is 72576, while the sum is 41.

The square root of 1690183742 is about 41111.8443030716. The cubic root of 1690183742 is about 1191.1815917103.

The spelling of 1690183742 in words is "one billion, six hundred ninety million, one hundred eighty-three thousand, seven hundred forty-two".