1690424144 has 20 divisors (see below), whose sum is σ = 3275936160. Its totient is φ = 845021280.

The previous prime is 1690424119. The next prime is 1690424147. The reversal of 1690424144 is 4414240961.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1690424147) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 85079 + ... + 103049.

It is an arithmetic number, because the mean of its divisors is an integer number (163796808).

Almost surely, 2^1690424144 is an apocalyptic number.

It is an amenable number.

1690424144 is a deficient number, since it is larger than the sum of its proper divisors (1585512016).

1690424144 is a wasteful number, since it uses less digits than its factorization.

1690424144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23858 (or 23852 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 35.

The square root of 1690424144 is about 41114.7679550791. The cubic root of 1690424144 is about 1191.2380646357.

The spelling of 1690424144 in words is "one billion, six hundred ninety million, four hundred twenty-four thousand, one hundred forty-four".