22449170731 has 8 divisors (see below), whose sum is σ = 24243377760. Its totient is φ = 20664584832.

The previous prime is 22449170729. The next prime is 22449170741. The reversal of 22449170731 is 13707194422.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 22449170731 - 2¹ = 22449170729 is a prime.

It is a super-2 number, since 2×22449170731² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22449170741) 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, 2400430 + ... + 2409763.

It is an arithmetic number, because the mean of its divisors is an integer number (3030422220).

Almost surely, 2^22449170731 is an apocalyptic number.

22449170731 is a deficient number, since it is larger than the sum of its proper divisors (1794207029).

22449170731 is a wasteful number, since it uses less digits than its factorization.

22449170731 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4810565.

The product of its (nonzero) digits is 84672, while the sum is 40.

The spelling of 22449170731 in words is "twenty-two billion, four hundred forty-nine million, one hundred seventy thousand, seven hundred thirty-one".