52040742 has 32 divisors (see below), whose sum is σ = 113134560. Its totient is φ = 15863040.

The previous prime is 52040741. The next prime is 52040749. The reversal of 52040742 is 24704025.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52040741) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5442 + ... + 11562.

It is an arithmetic number, because the mean of its divisors is an integer number (3535455).

Almost surely, 2^52040742 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 52040742, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (56567280).

52040742 is an abundant number, since it is smaller than the sum of its proper divisors (61093818).

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

52040742 is a wasteful number, since it uses less digits than its factorization.

52040742 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6248.

The product of its (nonzero) digits is 2240, while the sum is 24.

The square root of 52040742 is about 7213.9269472320. The cubic root of 52040742 is about 373.3485709838.

Adding to 52040742 its reverse (24704025), we get a palindrome (76744767).

The spelling of 52040742 in words is "fifty-two million, forty thousand, seven hundred forty-two".