40040485 has 8 divisors (see below), whose sum is σ = 48146040. Its totient is φ = 31967424.

The previous prime is 40040471. The next prime is 40040489. The reversal of 40040485 is 58404004.

It can be written as a sum of positive squares in 4 ways, for example, as 2696164 + 37344321 = 1642^2 + 6111^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 40040485 - 2¹⁵ = 40007717 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40040489) 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, 5322 + ... + 10411.

It is an arithmetic number, because the mean of its divisors is an integer number (6018255).

Almost surely, 2^40040485 is an apocalyptic number.

It is an amenable number.

40040485 is a deficient number, since it is larger than the sum of its proper divisors (8105555).

40040485 is a wasteful number, since it uses less digits than its factorization.

40040485 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16247.

The product of its (nonzero) digits is 2560, while the sum is 25.

The square root of 40040485 is about 6327.7551311662. The cubic root of 40040485 is about 342.1105310577.

Adding to 40040485 its reverse (58404004), we get a palindrome (98444489).

The spelling of 40040485 in words is "forty million, forty thousand, four hundred eighty-five".