2251344530 has 32 divisors (see below), whose sum is σ = 4202074800. Its totient is φ = 867428352.

The previous prime is 2251344499. The next prime is 2251344541. The reversal of 2251344530 is 354431522.

It is a happy number.

It can be written as a sum of positive squares in 8 ways, for example, as 576816289 + 1674528241 = 24017^2 + 40921^2 .

It is a Harshad number since it is a multiple of its sum of digits (29).

It is a junction number, because it is equal to n+sod(n) for n = 2251344493 and 2251344502.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 116606 + ... + 134534.

Almost surely, 2^2251344530 is an apocalyptic number.

2251344530 is a deficient number, since it is larger than the sum of its proper divisors (1950730270).

2251344530 is a wasteful number, since it uses less digits than its factorization.

2251344530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18398.

The product of its (nonzero) digits is 14400, while the sum is 29.

The square root of 2251344530 is about 47448.3353764913. The cubic root of 2251344530 is about 1310.6316573846.

The spelling of 2251344530 in words is "two billion, two hundred fifty-one million, three hundred forty-four thousand, five hundred thirty".