22047402 has 48 divisors (see below), whose sum is σ = 50595840. Its totient is φ = 6379776.

The previous prime is 22047401. The next prime is 22047427. The reversal of 22047402 is 20474022.

It is not an unprimeable number, because it can be changed into a prime (22047401) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 16599 + ... + 17877.

It is an arithmetic number, because the mean of its divisors is an integer number (1054080).

Almost surely, 2^22047402 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22047402, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (25297920).

22047402 is an abundant number, since it is smaller than the sum of its proper divisors (28548438).

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

22047402 is a wasteful number, since it uses less digits than its factorization.

22047402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1327 (or 1314 counting only the distinct ones).

The product of its (nonzero) digits is 896, while the sum is 21.

The square root of 22047402 is about 4695.4661110480. The cubic root of 22047402 is about 280.4050345622.

The spelling of 22047402 in words is "twenty-two million, forty-seven thousand, four hundred two".