22139446 has 16 divisors (see below), whose sum is σ = 39951360. Its totient is φ = 8988840.

The previous prime is 22139443. The next prime is 22139449. The reversal of 22139446 is 64493122.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (22139443) and next prime (22139449).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22139443) 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, 41350 + ... + 41881.

It is an arithmetic number, because the mean of its divisors is an integer number (2496960).

Almost surely, 2^22139446 is an apocalyptic number.

22139446 is a deficient number, since it is larger than the sum of its proper divisors (17811914).

22139446 is a wasteful number, since it uses less digits than its factorization.

22139446 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 83259.

The product of its digits is 10368, while the sum is 31.

The square root of 22139446 is about 4705.2572724560. The cubic root of 22139446 is about 280.7947065855.

The spelling of 22139446 in words is "twenty-two million, one hundred thirty-nine thousand, four hundred forty-six".