422032154 has 4 divisors (see below), whose sum is σ = 633048234. Its totient is φ = 211016076.

The previous prime is 422032151. The next prime is 422032181. The reversal of 422032154 is 451230224.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 356341129 + 65691025 = 18877^2 + 8105^2 .

It is a super-2 number, since 2×422032154² = 356222278019759432, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (422032151) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 105508037 + ... + 105508040.

Almost surely, 2^422032154 is an apocalyptic number.

422032154 is a deficient number, since it is larger than the sum of its proper divisors (211016080).

422032154 is a wasteful number, since it uses less digits than its factorization.

422032154 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 211016079.

The product of its (nonzero) digits is 1920, while the sum is 23.

The square root of 422032154 is about 20543.4211853820. The cubic root of 422032154 is about 750.0931167348.

Adding to 422032154 its reverse (451230224), we get a palindrome (873262378).

The spelling of 422032154 in words is "four hundred twenty-two million, thirty-two thousand, one hundred fifty-four".