424522392 has 128 divisors (see below), whose sum is σ = 1240842240. Its totient is φ = 118540800.

The previous prime is 424522391. The next prime is 424522403. The reversal of 424522392 is 293225424.

It is a super-2 number, since 2×424522392² = 360438522618803328, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (424522391) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2154838 + ... + 2155034.

It is an arithmetic number, because the mean of its divisors is an integer number (9694080).

Almost surely, 2^424522392 is an apocalyptic number.

424522392 is a gapful number since it is divisible by the number (42) 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 424522392, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (620421120).

424522392 is an abundant number, since it is smaller than the sum of its proper divisors (816319848).

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

424522392 is a wasteful number, since it uses less digits than its factorization.

424522392 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 441 (or 437 counting only the distinct ones).

The product of its digits is 34560, while the sum is 33.

The square root of 424522392 is about 20603.9411763866. The cubic root of 424522392 is about 751.5655546665.

It can be divided in two parts, 42452 and 2392, that added together give a palindrome (44844).

The spelling of 424522392 in words is "four hundred twenty-four million, five hundred twenty-two thousand, three hundred ninety-two".