2251937690 has 16 divisors (see below), whose sum is σ = 4064539392. Its totient is φ = 898319184.

The previous prime is 2251937689. The next prime is 2251937761. The reversal of 2251937690 is 967391522.

It is a super-2 number, since 2×2251937690² = 10142446719285072200, which contains 22 as substring.

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 303134 + ... + 310473.

It is an arithmetic number, because the mean of its divisors is an integer number (254033712).

Almost surely, 2^2251937690 is an apocalyptic number.

2251937690 is a deficient number, since it is larger than the sum of its proper divisors (1812601702).

2251937690 is a wasteful number, since it uses less digits than its factorization.

2251937690 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 613981.

The product of its (nonzero) digits is 204120, while the sum is 44.

The square root of 2251937690 is about 47454.5855529263. The cubic root of 2251937690 is about 1310.7467509799.

The spelling of 2251937690 in words is "two billion, two hundred fifty-one million, nine hundred thirty-seven thousand, six hundred ninety".