422629187 has 8 divisors (see below), whose sum is σ = 426330960. Its totient is φ = 418934880.

The previous prime is 422629159. The next prime is 422629211. The reversal of 422629187 is 781926224.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 422629187 - 2²⁶ = 355520323 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (422629127) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 217673 + ... + 219605.

It is an arithmetic number, because the mean of its divisors is an integer number (53291370).

Almost surely, 2^422629187 is an apocalyptic number.

422629187 is a deficient number, since it is larger than the sum of its proper divisors (3701773).

422629187 is a wasteful number, since it uses less digits than its factorization.

422629187 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3733.

The product of its digits is 96768, while the sum is 41.

The square root of 422629187 is about 20557.9470521743. The cubic root of 422629187 is about 750.4466595705.

The spelling of 422629187 in words is "four hundred twenty-two million, six hundred twenty-nine thousand, one hundred eighty-seven".