622456724 has 6 divisors (see below), whose sum is σ = 1089299274. Its totient is φ = 311228360.

The previous prime is 622456699. The next prime is 622456727. The reversal of 622456724 is 427654226.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 433888900 + 188567824 = 20830^2 + 13732^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (622456727) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 77807087 + ... + 77807094.

It is an arithmetic number, because the mean of its divisors is an integer number (181549879).

Almost surely, 2^622456724 is an apocalyptic number.

It is an amenable number.

622456724 is a deficient number, since it is larger than the sum of its proper divisors (466842550).

622456724 is a wasteful number, since it uses less digits than its factorization.

622456724 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 155614185 (or 155614183 counting only the distinct ones).

The product of its digits is 161280, while the sum is 38.

The square root of 622456724 is about 24949.0826284254. The cubic root of 622456724 is about 853.8266791727.

The spelling of 622456724 in words is "six hundred twenty-two million, four hundred fifty-six thousand, seven hundred twenty-four".