22455890490 has 32 divisors (see below), whose sum is σ = 58793605056. Its totient is φ = 5443852160.

The previous prime is 22455890459. The next prime is 22455890519. The reversal of 22455890490 is 9409855422.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 34023747 + ... + 34024406.

It is an arithmetic number, because the mean of its divisors is an integer number (1837300158).

Almost surely, 2^22455890490 is an apocalyptic number.

22455890490 is an abundant number, since it is smaller than the sum of its proper divisors (36337714566).

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

22455890490 is a wasteful number, since it uses less digits than its factorization.

22455890490 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68048174.

The product of its (nonzero) digits is 1036800, while the sum is 48.

The spelling of 22455890490 in words is "twenty-two billion, four hundred fifty-five million, eight hundred ninety thousand, four hundred ninety".