22031474 has 8 divisors (see below), whose sum is σ = 34186860. Its totient is φ = 10635856.

The previous prime is 22031459. The next prime is 22031479. The reversal of 22031474 is 47413022.

It can be written as a sum of positive squares in 2 ways, for example, as 22024249 + 7225 = 4693^2 + 85^2 .

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

It is a super-2 number, since 2×22031474² = 970771693225352, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (22031479) 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, 189869 + ... + 189984.

Almost surely, 2^22031474 is an apocalyptic number.

22031474 is a deficient number, since it is larger than the sum of its proper divisors (12155386).

22031474 is a wasteful number, since it uses less digits than its factorization.

22031474 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 379884.

The product of its (nonzero) digits is 1344, while the sum is 23.

The square root of 22031474 is about 4693.7697003581. The cubic root of 22031474 is about 280.3374927060.

Adding to 22031474 its reverse (47413022), we get a palindrome (69444496).

The spelling of 22031474 in words is "twenty-two million, thirty-one thousand, four hundred seventy-four".