40521475 has 24 divisors (see below), whose sum is σ = 52416288. Its totient is φ = 31046400.

The previous prime is 40521457. The next prime is 40521487. The reversal of 40521475 is 57412504.

It is not a de Polignac number, because 40521475 - 2⁵ = 40521443 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 65367 + ... + 65983.

It is an arithmetic number, because the mean of its divisors is an integer number (2184012).

Almost surely, 2^40521475 is an apocalyptic number.

40521475 is a deficient number, since it is larger than the sum of its proper divisors (11894813).

40521475 is a wasteful number, since it uses less digits than its factorization.

40521475 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 735 (or 730 counting only the distinct ones).

The product of its (nonzero) digits is 5600, while the sum is 28.

The square root of 40521475 is about 6365.6480424227. The cubic root of 40521475 is about 343.4749601602.

Adding to 40521475 its reverse (57412504), we get a palindrome (97933979).

The spelling of 40521475 in words is "forty million, five hundred twenty-one thousand, four hundred seventy-five".