40254513 has 16 divisors (see below), whose sum is σ = 59033856. Its totient is φ = 24243840.

The previous prime is 40254509. The next prime is 40254527. The reversal of 40254513 is 31545204.

It is not a de Polignac number, because 40254513 - 2² = 40254509 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (40254553) 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, 9148 + ... + 12813.

It is an arithmetic number, because the mean of its divisors is an integer number (3689616).

Almost surely, 2^40254513 is an apocalyptic number.

It is an amenable number.

40254513 is a deficient number, since it is larger than the sum of its proper divisors (18779343).

40254513 is a wasteful number, since it uses less digits than its factorization.

40254513 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22024.

The product of its (nonzero) digits is 2400, while the sum is 24.

The square root of 40254513 is about 6344.6444344817. The cubic root of 40254513 is about 342.7190081685.

Adding to 40254513 its reverse (31545204), we get a palindrome (71799717).

The spelling of 40254513 in words is "forty million, two hundred fifty-four thousand, five hundred thirteen".