2251362730 has 16 divisors (see below), whose sum is σ = 4078267560. Its totient is φ = 894808512.

The previous prime is 2251362691. The next prime is 2251362781. The reversal of 2251362730 is 372631522.

It can be written as a sum of positive squares in 4 ways, for example, as 1851322729 + 400040001 = 43027^2 + 20001^2 .

It is a junction number, because it is equal to n+sod(n) for n = 2251362692 and 2251362701.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 715425 + ... + 718564.

Almost surely, 2^2251362730 is an apocalyptic number.

2251362730 is a deficient number, since it is larger than the sum of its proper divisors (1826904830).

2251362730 is a wasteful number, since it uses less digits than its factorization.

2251362730 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1434153.

The product of its (nonzero) digits is 15120, while the sum is 31.

The square root of 2251362730 is about 47448.5271636539. The cubic root of 2251362730 is about 1310.6351891159.

The spelling of 2251362730 in words is "two billion, two hundred fifty-one million, three hundred sixty-two thousand, seven hundred thirty".