13890222292 has 12 divisors (see below), whose sum is σ = 24310045620. Its totient is φ = 6944494976.

The previous prime is 13890222287. The next prime is 13890222299. The reversal of 13890222292 is 29222209831.

It can be written as a sum of positive squares in 2 ways, for example, as 2863962256 + 11026260036 = 53516^2 + 105006^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13890222299) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 101317 + ... + 195052.

It is an arithmetic number, because the mean of its divisors is an integer number (2025837135).

Almost surely, 2^13890222292 is an apocalyptic number.

It is an amenable number.

13890222292 is a deficient number, since it is larger than the sum of its proper divisors (10419823328).

13890222292 is a wasteful number, since it uses less digits than its factorization.

13890222292 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 308090 (or 308088 counting only the distinct ones).

The product of its (nonzero) digits is 62208, while the sum is 40.

The spelling of 13890222292 in words is "thirteen billion, eight hundred ninety million, two hundred twenty-two thousand, two hundred ninety-two".