40540132 has 24 divisors (see below), whose sum is σ = 72898560. Its totient is φ = 19717440.

The previous prime is 40540127. The next prime is 40540133. The reversal of 40540132 is 23104504.

It is not an unprimeable number, because it can be changed into a prime (40540133) 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, 35344 + ... + 36472.

It is an arithmetic number, because the mean of its divisors is an integer number (3037440).

Almost surely, 2^40540132 is an apocalyptic number.

It is an amenable number.

40540132 is a deficient number, since it is larger than the sum of its proper divisors (32358428).

40540132 is a wasteful number, since it uses less digits than its factorization.

40540132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1371 (or 1369 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 19.

The square root of 40540132 is about 6367.1133176660. The cubic root of 40540132 is about 343.5276666086.

Adding to 40540132 its reverse (23104504), we get a palindrome (63644636).

The spelling of 40540132 in words is "forty million, five hundred forty thousand, one hundred thirty-two".