1913438022 has 16 divisors (see below), whose sum is σ = 3828943872. Its totient is φ = 637468040.

The previous prime is 1913437987. The next prime is 1913438029. The reversal of 1913438022 is 2208343191.

It is a super-2 number, since 2×1913438022² = 7322490128070544968, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1913438029) 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, 73998 + ... + 96449.

It is an arithmetic number, because the mean of its divisors is an integer number (239308992).

Almost surely, 2^1913438022 is an apocalyptic number.

1913438022 is an abundant number, since it is smaller than the sum of its proper divisors (1915505850).

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

1913438022 is a wasteful number, since it uses less digits than its factorization.

1913438022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 172323.

The product of its (nonzero) digits is 10368, while the sum is 33.

The square root of 1913438022 is about 43742.8625263597. The cubic root of 1913438022 is about 1241.4754423794.

The spelling of 1913438022 in words is "one billion, nine hundred thirteen million, four hundred thirty-eight thousand, twenty-two".