2240400424 has 8 divisors (see below), whose sum is σ = 4200750810. Its totient is φ = 1120200208.

The previous prime is 2240400413. The next prime is 2240400469. The reversal of 2240400424 is 4240040422.

It can be written as a sum of positive squares in only one way, i.e., 1297296324 + 943104100 = 36018^2 + 30710^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a junction number, because it is equal to n+sod(n) for n = 2240400395 and 2240400404.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 140025019 + ... + 140025034.

Almost surely, 2^2240400424 is an apocalyptic number.

It is an amenable number.

2240400424 is a deficient number, since it is larger than the sum of its proper divisors (1960350386).

2240400424 is a wasteful number, since it uses less digits than its factorization.

2240400424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 280050059 (or 280050055 counting only the distinct ones).

The product of its (nonzero) digits is 2048, while the sum is 22.

The square root of 2240400424 is about 47332.8683263544. The cubic root of 2240400424 is about 1308.5044845169.

Adding to 2240400424 its reverse (4240040422), we get a palindrome (6480440846).

The spelling of 2240400424 in words is "two billion, two hundred forty million, four hundred thousand, four hundred twenty-four".