22776490 has 32 divisors (see below), whose sum is σ = 45308160. Its totient is φ = 8174400.

The previous prime is 22776451. The next prime is 22776491. The reversal of 22776490 is 9467722.

22776490 = 95² + 96² + ... + 410².

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (22776491) 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 15 ways as a sum of consecutive naturals, for example, 7380 + ... + 10000.

It is an arithmetic number, because the mean of its divisors is an integer number (1415880).

Almost surely, 2^22776490 is an apocalyptic number.

22776490 is a deficient number, since it is larger than the sum of its proper divisors (22531670).

22776490 is a wasteful number, since it uses less digits than its factorization.

22776490 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2718.

The product of its (nonzero) digits is 42336, while the sum is 37.

The square root of 22776490 is about 4772.4721057330. The cubic root of 22776490 is about 283.4624909031.

The spelling of 22776490 in words is "twenty-two million, seven hundred seventy-six thousand, four hundred ninety".