1690474429 has 8 divisors (see below), whose sum is σ = 1959182208. Its totient is φ = 1428569520.

The previous prime is 1690474411. The next prime is 1690474433. The reversal of 1690474429 is 9244740961.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1690474429 - 2¹⁷ = 1690343357 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1690474129) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1700182 + ... + 1701175.

It is an arithmetic number, because the mean of its divisors is an integer number (244897776).

Almost surely, 2^1690474429 is an apocalyptic number.

It is an amenable number.

1690474429 is a deficient number, since it is larger than the sum of its proper divisors (268707779).

1690474429 is an equidigital number, since it uses as much as digits as its factorization.

1690474429 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3401435.

The product of its (nonzero) digits is 435456, while the sum is 46.

The square root of 1690474429 is about 41115.3794704609. The cubic root of 1690474429 is about 1191.2498764271.

The spelling of 1690474429 in words is "one billion, six hundred ninety million, four hundred seventy-four thousand, four hundred twenty-nine".