422074157 has 4 divisors (see below), whose sum is σ = 422116380. Its totient is φ = 422031936.

The previous prime is 422074153. The next prime is 422074171. The reversal of 422074157 is 751470224.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 174609796 + 247464361 = 13214^2 + 15731^2 .

It is a cyclic number.

It is not a de Polignac number, because 422074157 - 2² = 422074153 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (422074153) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3269 + ... + 29237.

It is an arithmetic number, because the mean of its divisors is an integer number (105529095).

Almost surely, 2^422074157 is an apocalyptic number.

It is an amenable number.

422074157 is a deficient number, since it is larger than the sum of its proper divisors (42223).

422074157 is a wasteful number, since it uses less digits than its factorization.

422074157 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42222.

The product of its (nonzero) digits is 15680, while the sum is 32.

The square root of 422074157 is about 20544.4434580253. The cubic root of 422074157 is about 750.1180003965.

It can be divided in two parts, 42207 and 4157, that added together give a palindrome (46364).

The spelling of 422074157 in words is "four hundred twenty-two million, seventy-four thousand, one hundred fifty-seven".