40033625 has 8 divisors (see below), whose sum is σ = 49962120. Its totient is φ = 32026800.

The previous prime is 40033621. The next prime is 40033649. The reversal of 40033625 is 52633004.

It can be written as a sum of positive squares in 4 ways, for example, as 9684544 + 30349081 = 3112^2 + 5509^2 .

It is not a de Polignac number, because 40033625 - 2² = 40033621 is a prime.

It is a super-2 number, since 2×40033625² = 3205382261281250, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 40033625.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40033621) 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, 160010 + ... + 160259.

It is an arithmetic number, because the mean of its divisors is an integer number (6245265).

Almost surely, 2^40033625 is an apocalyptic number.

It is an amenable number.

40033625 is a deficient number, since it is larger than the sum of its proper divisors (9928495).

40033625 is an equidigital number, since it uses as much as digits as its factorization.

40033625 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 320284 (or 320274 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 23.

The square root of 40033625 is about 6327.2130515733. The cubic root of 40033625 is about 342.0909923975.

Adding to 40033625 its reverse (52633004), we get a palindrome (92666629).

The spelling of 40033625 in words is "forty million, thirty-three thousand, six hundred twenty-five".