2400722 has 4 divisors (see below), whose sum is σ = 3601086. Its totient is φ = 1200360.

The previous prime is 2400719. The next prime is 2400767. The reversal of 2400722 is 2270042.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 2270042 = 2 ⋅1135021.

It can be written as a sum of positive squares in only one way, i.e., 1713481 + 687241 = 1309^2 + 829^2 .

It is a super-2 number, since 2×2400722² = 11526932242568, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 2400722.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 600179 + ... + 600182.

2^2400722 is an apocalyptic number.

2400722 is a deficient number, since it is larger than the sum of its proper divisors (1200364).

2400722 is a wasteful number, since it uses less digits than its factorization.

2400722 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1200363.

The product of its (nonzero) digits is 224, while the sum is 17.

The square root of 2400722 is about 1549.4263454582. The cubic root of 2400722 is about 133.9000145201.

Adding to 2400722 its reverse (2270042), we get a palindrome (4670764).

The spelling of 2400722 in words is "two million, four hundred thousand, seven hundred twenty-two".