9940396 has 12 divisors (see below), whose sum is σ = 17800552. Its totient is φ = 4854528.

The previous prime is 9940387. The next prime is 9940397. The reversal of 9940396 is 6930499.

It is a super-2 number, since 2×9940396² = 197622945273632, which contains 22 as substring.

It is a hoax number, since the sum of its digits (40) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (9940397) 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, 28725 + ... + 29068.

Almost surely, 2^9940396 is an apocalyptic number.

It is an amenable number.

9940396 is a deficient number, since it is larger than the sum of its proper divisors (7860156).

9940396 is a wasteful number, since it uses less digits than its factorization.

9940396 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57840 (or 57838 counting only the distinct ones).

The product of its (nonzero) digits is 52488, while the sum is 40.

The square root of 9940396 is about 3152.8393552479. The cubic root of 9940396 is about 215.0145726557.

It can be divided in two parts, 99403 and 96, that added together give a palindrome (99499).

The spelling of 9940396 in words is "nine million, nine hundred forty thousand, three hundred ninety-six".