9920252 has 6 divisors (see below), whose sum is σ = 17360448. Its totient is φ = 4960124.

The previous prime is 9920249. The next prime is 9920257. The reversal of 9920252 is 2520299.

It is a super-2 number, since 2×9920252² = 196822799487008, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9920257) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1240028 + ... + 1240035.

It is an arithmetic number, because the mean of its divisors is an integer number (2893408).

Almost surely, 2^9920252 is an apocalyptic number.

It is an amenable number.

9920252 is a deficient number, since it is larger than the sum of its proper divisors (7440196).

9920252 is a wasteful number, since it uses less digits than its factorization.

9920252 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2480067 (or 2480065 counting only the distinct ones).

The product of its (nonzero) digits is 3240, while the sum is 29.

The square root of 9920252 is about 3149.6431543907. The cubic root of 9920252 is about 214.8692336242.

The spelling of 9920252 in words is "nine million, nine hundred twenty thousand, two hundred fifty-two".