622406157 has 16 divisors (see below), whose sum is σ = 835376640. Its totient is φ = 412195392.

The previous prime is 622406153. The next prime is 622406167. The reversal of 622406157 is 751604226.

It is not a de Polignac number, because 622406157 - 2² = 622406153 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (622406153) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 505819 + ... + 507047.

It is an arithmetic number, because the mean of its divisors is an integer number (52211040).

Almost surely, 2^622406157 is an apocalyptic number.

It is an amenable number.

622406157 is a deficient number, since it is larger than the sum of its proper divisors (212970483).

622406157 is a wasteful number, since it uses less digits than its factorization.

622406157 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2212.

The product of its (nonzero) digits is 20160, while the sum is 33.

The square root of 622406157 is about 24948.0692038482. The cubic root of 622406157 is about 853.8035575530.

The spelling of 622406157 in words is "six hundred twenty-two million, four hundred six thousand, one hundred fifty-seven".