2400723 has 36 divisors (see below), whose sum is σ = 4022928. Its totient is φ = 1370880.

The previous prime is 2400719. The next prime is 2400767. The reversal of 2400723 is 3270042.

It is a happy number.

It is not a de Polignac number, because 2400723 - 2² = 2400719 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2400696 and 2400705.

It is not an unprimeable number, because it can be changed into a prime (2400703) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 33778 + ... + 33848.

It is an arithmetic number, because the mean of its divisors is an integer number (111748).

2^2400723 is an apocalyptic number.

2400723 is a deficient number, since it is larger than the sum of its proper divisors (1622205).

2400723 is a wasteful number, since it uses less digits than its factorization.

2400723 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 124 (or 104 counting only the distinct ones).

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

The square root of 2400723 is about 1549.4266681583. The cubic root of 2400723 is about 133.9000331117.

Adding to 2400723 its reverse (3270042), we get a palindrome (5670765).

The spelling of 2400723 in words is "two million, four hundred thousand, seven hundred twenty-three".