22149494 has 8 divisors (see below), whose sum is σ = 33249720. Its totient is φ = 11066256.

The previous prime is 22149493. The next prime is 22149499. The reversal of 22149494 is 49494122.

It is a happy number.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22149493) 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, 224 + ... + 6659.

It is an arithmetic number, because the mean of its divisors is an integer number (4156215).

Almost surely, 2^22149494 is an apocalyptic number.

22149494 is a deficient number, since it is larger than the sum of its proper divisors (11100226).

22149494 is a wasteful number, since it uses less digits than its factorization.

22149494 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8494.

The product of its digits is 20736, while the sum is 35.

The square root of 22149494 is about 4706.3248931624. The cubic root of 22149494 is about 280.8371797724.

The spelling of 22149494 in words is "twenty-two million, one hundred forty-nine thousand, four hundred ninety-four".