2399072 has 48 divisors (see below), whose sum is σ = 5221440. Its totient is φ = 1078272.

The previous prime is 2399041. The next prime is 2399081. The reversal of 2399072 is 2709932.

It is a super-2 number, since 2×2399072² = 11511092922368, which contains 22 as substring.

It is a hoax number, since the sum of its digits (32) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (32).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 30329 + ... + 30407.

It is an arithmetic number, because the mean of its divisors is an integer number (108780).

2^2399072 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 2399072, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2610720).

2399072 is an abundant number, since it is smaller than the sum of its proper divisors (2822368).

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

2399072 is a wasteful number, since it uses less digits than its factorization.

2399072 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 175 (or 167 counting only the distinct ones).

The product of its (nonzero) digits is 6804, while the sum is 32.

The square root of 2399072 is about 1548.8937988126. The cubic root of 2399072 is about 133.8693312980.

The spelling of 2399072 in words is "two million, three hundred ninety-nine thousand, seventy-two".