422731802 has 4 divisors (see below), whose sum is σ = 634097706. Its totient is φ = 211365900.

The previous prime is 422731759. The next prime is 422731807. The reversal of 422731802 is 208137224.

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., 242393761 + 180338041 = 15569^2 + 13429^2 .

It is not an unprimeable number, because it can be changed into a prime (422731807) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 105682949 + ... + 105682952.

Almost surely, 2^422731802 is an apocalyptic number.

422731802 is a deficient number, since it is larger than the sum of its proper divisors (211365904).

422731802 is a wasteful number, since it uses less digits than its factorization.

422731802 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 211365903.

The product of its (nonzero) digits is 5376, while the sum is 29.

The square root of 422731802 is about 20560.4426508770. The cubic root of 422731802 is about 750.5073911800.

The spelling of 422731802 in words is "four hundred twenty-two million, seven hundred thirty-one thousand, eight hundred two".