40461540 has 48 divisors (see below), whose sum is σ = 129478272. Its totient is φ = 9248256.

The previous prime is 40461527. The next prime is 40461559. The reversal of 40461540 is 4516404.

It is a self number, because there is not a number n which added to its sum of digits gives 40461540.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 47749 + ... + 48588.

It is an arithmetic number, because the mean of its divisors is an integer number (2697464).

Almost surely, 2^40461540 is an apocalyptic number.

It is an amenable number.

40461540 is an abundant number, since it is smaller than the sum of its proper divisors (89016732).

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

40461540 is a wasteful number, since it uses less digits than its factorization.

40461540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 96356 (or 96354 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 24.

The square root of 40461540 is about 6360.9386099852. The cubic root of 40461540 is about 343.3055328816.

Adding to 40461540 its reverse (4516404), we get a palindrome (44977944).

The spelling of 40461540 in words is "forty million, four hundred sixty-one thousand, five hundred forty".