40561392 has 40 divisors (see below), whose sum is σ = 108167680. Its totient is φ = 13083840.

The previous prime is 40561363. The next prime is 40561403. The reversal of 40561392 is 29316504.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12142 + ... + 15117.

It is an arithmetic number, because the mean of its divisors is an integer number (2704192).

Almost surely, 2^40561392 is an apocalyptic number.

It is an amenable number.

40561392 is an abundant number, since it is smaller than the sum of its proper divisors (67606288).

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

40561392 is a wasteful number, since it uses less digits than its factorization.

40561392 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27301 (or 27295 counting only the distinct ones).

The product of its (nonzero) digits is 6480, while the sum is 30.

The square root of 40561392 is about 6368.7826152256. The cubic root of 40561392 is about 343.5877068825.

Adding to 40561392 its reverse (29316504), we get a palindrome (69877896).

The spelling of 40561392 in words is "forty million, five hundred sixty-one thousand, three hundred ninety-two".