40561052 has 24 divisors (see below), whose sum is σ = 84650496. Its totient is φ = 16627248.

The previous prime is 40561039. The next prime is 40561057. The reversal of 40561052 is 25016504.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40561057) 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, 30848 + ... + 32135.

It is an arithmetic number, because the mean of its divisors is an integer number (3527104).

Almost surely, 2^40561052 is an apocalyptic number.

It is an amenable number.

40561052 is an abundant number, since it is smaller than the sum of its proper divisors (44089444).

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

40561052 is a wasteful number, since it uses less digits than its factorization.

40561052 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63017 (or 63015 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 23.

The square root of 40561052 is about 6368.7559224703. The cubic root of 40561052 is about 343.5867468550.

Adding to 40561052 its reverse (25016504), we get a palindrome (65577556).

The spelling of 40561052 in words is "forty million, five hundred sixty-one thousand, fifty-two".