9400400 has 60 divisors (see below), whose sum is σ = 22971744. Its totient is φ = 3696000.

The previous prime is 9400397. The next prime is 9400463. The reversal of 9400400 is 40049.

It is an Ulam number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 28235 + ... + 28565.

Almost surely, 2^9400400 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 9400400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11485872).

9400400 is an abundant number, since it is smaller than the sum of its proper divisors (13571344).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

9400400 is a wasteful number, since it uses less digits than its factorization.

9400400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 420 (or 409 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 17.

The square root of 9400400 is about 3066.0071754645. The cubic root of 9400400 is about 211.0484229587.

Adding to 9400400 its reverse (40049), we get a palindrome (9440449).

The spelling of 9400400 in words is "nine million, four hundred thousand, four hundred".