2320407 has 16 divisors (see below), whose sum is σ = 3483360. Its totient is φ = 1545480.

The previous prime is 2320399. The next prime is 2320421. The reversal of 2320407 is 7040232.

It is a happy number.

It is not a de Polignac number, because 2320407 - 2³ = 2320399 is a prime.

It is an Ulam number.

2320407 is a lucky number.

It is a zygodrome in base 3.

It is a self number, because there is not a number n which added to its sum of digits gives 2320407.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2320427) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1657 + ... + 2717.

It is an arithmetic number, because the mean of its divisors is an integer number (217710).

2^2320407 is an apocalyptic number.

2320407 is a gapful number since it is divisible by the number (27) formed by its first and last digit.

2320407 is a deficient number, since it is larger than the sum of its proper divisors (1162953).

2320407 is an frugal number, since it uses more digits than its factorization.

2320407 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1082 (or 1064 counting only the distinct ones).

The product of its (nonzero) digits is 336, while the sum is 18.

The square root of 2320407 is about 1523.2882196091. The cubic root of 2320407 is about 132.3898598186.

Adding to 2320407 its reverse (7040232), we get a palindrome (9360639).

The spelling of 2320407 in words is "two million, three hundred twenty thousand, four hundred seven".