1690072004238 has 16 divisors (see below), whose sum is σ = 3380817270096. Its totient is φ = 563245124480.

The previous prime is 1690072004207. The next prime is 1690072004239. The reversal of 1690072004238 is 8324002700961.

It is a self number, because there is not a number n which added to its sum of digits gives 1690072004238.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1690072004239) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 28019931 + ... + 28080182.

It is an arithmetic number, because the mean of its divisors is an integer number (211301079381).

Almost surely, 2^{1690072004238} is an apocalyptic number.

1690072004238 is an abundant number, since it is smaller than the sum of its proper divisors (1690745265858).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1690072004238 is a wasteful number, since it uses less digits than its factorization.

1690072004238 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56105139.

The product of its (nonzero) digits is 145152, while the sum is 42.

The spelling of 1690072004238 in words is "one trillion, six hundred ninety billion, seventy-two million, four thousand, two hundred thirty-eight".