422801478 has 64 divisors (see below), whose sum is σ = 1034208000. Its totient is φ = 126967680.

The previous prime is 422801461. The next prime is 422801497. The reversal of 422801478 is 874108224.

It is a super-2 number, since 2×422801478² = 357522179597968968, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 63973 + ... + 70271.

It is an arithmetic number, because the mean of its divisors is an integer number (16159500).

Almost surely, 2^422801478 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 422801478, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (517104000).

422801478 is an abundant number, since it is smaller than the sum of its proper divisors (611406522).

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

422801478 is a wasteful number, since it uses less digits than its factorization.

422801478 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6434 (or 6428 counting only the distinct ones).

The product of its (nonzero) digits is 28672, while the sum is 36.

The square root of 422801478 is about 20562.1369998354. The cubic root of 422801478 is about 750.5486225865.

The spelling of 422801478 in words is "four hundred twenty-two million, eight hundred one thousand, four hundred seventy-eight".