252040412 has 24 divisors (see below), whose sum is σ = 475456800. Its totient is φ = 116214336.

The previous prime is 252040379. The next prime is 252040423. The reversal of 252040412 is 214040252.

It is a happy number.

It is a super-2 number, since 2×252040412² = 127048738562259488, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 79514 + ... + 82622.

It is an arithmetic number, because the mean of its divisors is an integer number (19810700).

Almost surely, 2^252040412 is an apocalyptic number.

It is an amenable number.

252040412 is a deficient number, since it is larger than the sum of its proper divisors (223416388).

252040412 is a wasteful number, since it uses less digits than its factorization.

252040412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4685 (or 4683 counting only the distinct ones).

The product of its (nonzero) digits is 640, while the sum is 20.

The square root of 252040412 is about 15875.7806737181. The cubic root of 252040412 is about 631.6697220779.

Adding to 252040412 its reverse (214040252), we get a palindrome (466080664).

The spelling of 252040412 in words is "two hundred fifty-two million, forty thousand, four hundred twelve".