40401075 has 48 divisors (see below), whose sum is σ = 78494976. Its totient is φ = 18076800.

The previous prime is 40401073. The next prime is 40401079. The reversal of 40401075 is 57010404.

40401075 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 40401075 - 2¹ = 40401073 is a prime.

It is a super-2 number, since 2×40401075² = 3264493722311250, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (40401071) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 8842 + ... + 12608.

It is an arithmetic number, because the mean of its divisors is an integer number (1635312).

Almost surely, 2^40401075 is an apocalyptic number.

40401075 is a deficient number, since it is larger than the sum of its proper divisors (38093901).

40401075 is a wasteful number, since it uses less digits than its factorization.

40401075 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3804 (or 3799 counting only the distinct ones).

The product of its (nonzero) digits is 560, while the sum is 21.

The square root of 40401075 is about 6356.1839967075. The cubic root of 40401075 is about 343.1344377482.

Adding to 40401075 its reverse (57010404), we get a palindrome (97411479).

It can be divided in two parts, 4040 and 1075, that added together give a palindrome (5115).

The spelling of 40401075 in words is "forty million, four hundred one thousand, seventy-five".