22231494 has 12 divisors (see below), whose sum is σ = 48168276. Its totient is φ = 7410492.

The previous prime is 22231481. The next prime is 22231499. The reversal of 22231494 is 49413222.

It is a hoax number, since the sum of its digits (27) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22231499) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 617524 + ... + 617559.

It is an arithmetic number, because the mean of its divisors is an integer number (4014023).

Almost surely, 2^22231494 is an apocalyptic number.

22231494 is an abundant number, since it is smaller than the sum of its proper divisors (25936782).

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

22231494 is a wasteful number, since it uses less digits than its factorization.

22231494 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1235091 (or 1235088 counting only the distinct ones).

The product of its digits is 3456, while the sum is 27.

The square root of 22231494 is about 4715.0285258946. The cubic root of 22231494 is about 281.1833169317.

The spelling of 22231494 in words is "twenty-two million, two hundred thirty-one thousand, four hundred ninety-four".