422466840 has 160 divisors (see below), whose sum is σ = 1435127760. Its totient is φ = 111456000.

The previous prime is 422466833. The next prime is 422466871. The reversal of 422466840 is 48664224.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 422466795 and 422466804.

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 39 ways as a sum of consecutive naturals, for example, 326595 + ... + 327885.

Almost surely, 2^422466840 is an apocalyptic number.

422466840 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 422466840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (717563880).

422466840 is an abundant number, since it is smaller than the sum of its proper divisors (1012660920).

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

422466840 is a wasteful number, since it uses less digits than its factorization.

422466840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1415 (or 1402 counting only the distinct ones).

The product of its (nonzero) digits is 73728, while the sum is 36.

The square root of 422466840 is about 20553.9981512114. The cubic root of 422466840 is about 750.3505561217.

The spelling of 422466840 in words is "four hundred twenty-two million, four hundred sixty-six thousand, eight hundred forty".