9400724 has 6 divisors (see below), whose sum is σ = 16451274. Its totient is φ = 4700360.

The previous prime is 9400723. The next prime is 9400733. The reversal of 9400724 is 4270049.

9400724 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 6400900 + 2999824 = 2530^2 + 1732^2 .

It is a super-2 number, since 2×9400724² = 176747223448352, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 9400693 and 9400702.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9400723) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1175087 + ... + 1175094.

It is an arithmetic number, because the mean of its divisors is an integer number (2741879).

Almost surely, 2^9400724 is an apocalyptic number.

It is an amenable number.

9400724 is a deficient number, since it is larger than the sum of its proper divisors (7050550).

9400724 is a wasteful number, since it uses less digits than its factorization.

9400724 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2350185 (or 2350183 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 26.

The square root of 9400724 is about 3066.0600124590. The cubic root of 9400724 is about 211.0508476394.

The spelling of 9400724 in words is "nine million, four hundred thousand, seven hundred twenty-four".