40120252 has 6 divisors (see below), whose sum is σ = 70210448. Its totient is φ = 20060124.

The previous prime is 40120219. The next prime is 40120259. The reversal of 40120252 is 25202104.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40120259) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5015028 + ... + 5015035.

Almost surely, 2^40120252 is an apocalyptic number.

It is an amenable number.

40120252 is a deficient number, since it is larger than the sum of its proper divisors (30090196).

40120252 is a wasteful number, since it uses less digits than its factorization.

40120252 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10030067 (or 10030065 counting only the distinct ones).

The product of its (nonzero) digits is 160, while the sum is 16.

The square root of 40120252 is about 6334.0549413468. The cubic root of 40120252 is about 342.3375598539.

Adding to 40120252 its reverse (25202104), we get a palindrome (65322356).

The spelling of 40120252 in words is "forty million, one hundred twenty thousand, two hundred fifty-two".