40220625 has 40 divisors (see below), whose sum is σ = 70602400. Its totient is φ = 20304000.

The previous prime is 40220599. The next prime is 40220639. The reversal of 40220625 is 52602204.

It is not a de Polignac number, because 40220625 - 2⁶ = 40220561 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 35061 + ... + 36189.

It is an arithmetic number, because the mean of its divisors is an integer number (1765060).

Almost surely, 2^40220625 is an apocalyptic number.

It is an amenable number.

40220625 is a deficient number, since it is larger than the sum of its proper divisors (30381775).

40220625 is a wasteful number, since it uses less digits than its factorization.

40220625 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1171 (or 1156 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 21.

The square root of 40220625 is about 6341.9732733590. The cubic root of 40220625 is about 342.6228092458.

Adding to 40220625 its reverse (52602204), we get a palindrome (92822829).

The spelling of 40220625 in words is "forty million, two hundred twenty thousand, six hundred twenty-five".