52234440 has 32 divisors (see below), whose sum is σ = 156703680. Its totient is φ = 13929152.

The previous prime is 52234433. The next prime is 52234447. The reversal of 52234440 is 4443225.

It is an interprime number because it is at equal distance from previous prime (52234433) and next prime (52234447).

It is a super-2 number, since 2×52234440² = 5456873444227200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a self number, because there is not a number n which added to its sum of digits gives 52234440.

It is not an unprimeable number, because it can be changed into a prime (52234447) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 217524 + ... + 217763.

It is an arithmetic number, because the mean of its divisors is an integer number (4896990).

Almost surely, 2^52234440 is an apocalyptic number.

It is an amenable number.

52234440 is an abundant number, since it is smaller than the sum of its proper divisors (104469240).

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

52234440 is a wasteful number, since it uses less digits than its factorization.

52234440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 435301 (or 435297 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 24.

The square root of 52234440 is about 7227.3397595519. The cubic root of 52234440 is about 373.8112042436.

Adding to 52234440 its reverse (4443225), we get a palindrome (56677665).

The spelling of 52234440 in words is "fifty-two million, two hundred thirty-four thousand, four hundred forty".