40120852 has 12 divisors (see below), whose sum is σ = 70389396. Its totient is φ = 20009600.

The previous prime is 40120819. The next prime is 40120853. The reversal of 40120852 is 25802104.

It can be written as a sum of positive squares in 2 ways, for example, as 39765636 + 355216 = 6306^2 + 596^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40120853) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10903 + ... + 14110.

It is an arithmetic number, because the mean of its divisors is an integer number (5865783).

Almost surely, 2^40120852 is an apocalyptic number.

It is an amenable number.

40120852 is a deficient number, since it is larger than the sum of its proper divisors (30268544).

40120852 is a wasteful number, since it uses less digits than its factorization.

40120852 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25418 (or 25416 counting only the distinct ones).

The product of its (nonzero) digits is 640, while the sum is 22.

The square root of 40120852 is about 6334.1023041943. The cubic root of 40120852 is about 342.3392664028.

Adding to 40120852 its reverse (25802104), we get a palindrome (65922956).

The spelling of 40120852 in words is "forty million, one hundred twenty thousand, eight hundred fifty-two".