52240842 has 64 divisors (see below), whose sum is σ = 124416000. Its totient is φ = 16198704.

The previous prime is 52240841. The next prime is 52240871. The reversal of 52240842 is 24804225.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52240841) 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, 60103 + ... + 60965.

It is an arithmetic number, because the mean of its divisors is an integer number (1944000).

Almost surely, 2^52240842 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 52240842, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (62208000).

52240842 is an abundant number, since it is smaller than the sum of its proper divisors (72175158).

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

52240842 is a wasteful number, since it uses less digits than its factorization.

52240842 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 952 (or 946 counting only the distinct ones).

The product of its (nonzero) digits is 5120, while the sum is 27.

The square root of 52240842 is about 7227.7826475344. The cubic root of 52240842 is about 373.8264754042.

The spelling of 52240842 in words is "fifty-two million, two hundred forty thousand, eight hundred forty-two".