22420148 has 6 divisors (see below), whose sum is σ = 39235266. Its totient is φ = 11210072.

The previous prime is 22420141. The next prime is 22420159. The reversal of 22420148 is 84102422.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 13823524 + 8596624 = 3718^2 + 2932^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22420141) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2802515 + ... + 2802522.

It is an arithmetic number, because the mean of its divisors is an integer number (6539211).

Almost surely, 2^22420148 is an apocalyptic number.

It is an amenable number.

22420148 is a deficient number, since it is larger than the sum of its proper divisors (16815118).

22420148 is a wasteful number, since it uses less digits than its factorization.

22420148 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5605041 (or 5605039 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 23.

The square root of 22420148 is about 4734.9918690532. The cubic root of 22420148 is about 281.9764412021.

The spelling of 22420148 in words is "twenty-two million, four hundred twenty thousand, one hundred forty-eight".