9940402 has 8 divisors (see below), whose sum is σ = 14924700. Its totient is φ = 4965504.

The previous prime is 9940397. The next prime is 9940433. The reversal of 9940402 is 2040499.

It can be written as a sum of positive squares in 2 ways, for example, as 7080921 + 2859481 = 2661^2 + 1691^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1674 + ... + 4762.

Almost surely, 2^9940402 is an apocalyptic number.

9940402 is a deficient number, since it is larger than the sum of its proper divisors (4984298).

9940402 is a wasteful number, since it uses less digits than its factorization.

9940402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4700.

The product of its (nonzero) digits is 2592, while the sum is 28.

The square root of 9940402 is about 3152.8403067710. The cubic root of 9940402 is about 215.0146159164.

The spelling of 9940402 in words is "nine million, nine hundred forty thousand, four hundred two".