9400990 has 16 divisors (see below), whose sum is σ = 16989120. Its totient is φ = 3745440.

The previous prime is 9400973. The next prime is 9400999. The reversal of 9400990 is 990049.

It is a super-2 number, since 2×9400990² = 176757225960200, which contains 22 as substring.

9400990 is a modest number, since divided by 990 gives 940 as remainder.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9400999) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 976 + ... + 4444.

It is an arithmetic number, because the mean of its divisors is an integer number (1061820).

Almost surely, 2^9400990 is an apocalyptic number.

9400990 is a deficient number, since it is larger than the sum of its proper divisors (7588130).

9400990 is a wasteful number, since it uses less digits than its factorization.

9400990 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3747.

The product of its (nonzero) digits is 2916, while the sum is 31.

The square root of 9400990 is about 3066.1033902985. The cubic root of 9400990 is about 211.0528382306.

The spelling of 9400990 in words is "nine million, four hundred thousand, nine hundred ninety".