422078784 has 28 divisors (see below), whose sum is σ = 1116750624. Its totient is φ = 140692864.

The previous prime is 422078777. The next prime is 422078809. The reversal of 422078784 is 487870224.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1098972 + ... + 1099355.

Almost surely, 2^422078784 is an apocalyptic number.

It is an amenable number.

422078784 is an abundant number, since it is smaller than the sum of its proper divisors (694671840).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

422078784 is a wasteful number, since it uses less digits than its factorization.

422078784 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2198342 (or 2198332 counting only the distinct ones).

The product of its (nonzero) digits is 200704, while the sum is 42.

The square root of 422078784 is about 20544.5560672408. The cubic root of 422078784 is about 750.1207414498.

The spelling of 422078784 in words is "four hundred twenty-two million, seventy-eight thousand, seven hundred eighty-four".