2399380 has 24 divisors (see below), whose sum is σ = 5335848. Its totient is φ = 903168.

The previous prime is 2399359. The next prime is 2399381. The reversal of 2399380 is 839932.

It can be written as a sum of positive squares in 4 ways, for example, as 1354896 + 1044484 = 1164^2 + 1022^2 .

It is a hoax number, since the sum of its digits (34) 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 (34).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2399381) 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, 3189 + ... + 3868.

It is an arithmetic number, because the mean of its divisors is an integer number (222327).

2^2399380 is an apocalyptic number.

2399380 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2399380 is an abundant number, since it is smaller than the sum of its proper divisors (2936468).

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

2399380 is a wasteful number, since it uses less digits than its factorization.

2399380 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7083 (or 7081 counting only the distinct ones).

The product of its (nonzero) digits is 11664, while the sum is 34.

The square root of 2399380 is about 1548.9932214184. The cubic root of 2399380 is about 133.8750599005.

The spelling of 2399380 in words is "two million, three hundred ninety-nine thousand, three hundred eighty".