52232040 has 320 divisors, whose sum is σ = 209088000. Its totient is φ = 11684736.

The previous prime is 52232039. The next prime is 52232069. The reversal of 52232040 is 4023225.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 1111297 + ... + 1111343.

It is an arithmetic number, because the mean of its divisors is an integer number (653400).

Almost surely, 2^52232040 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 52232040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (104544000).

52232040 is an abundant number, since it is smaller than the sum of its proper divisors (156855960).

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

52232040 is a wasteful number, since it uses less digits than its factorization.

52232040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 91 (or 64 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 18.

The square root of 52232040 is about 7227.1737214488. The cubic root of 52232040 is about 373.8054790259.

Adding to 52232040 its reverse (4023225), we get a palindrome (56255265).

The spelling of 52232040 in words is "fifty-two million, two hundred thirty-two thousand, forty".