2257040690 has 16 divisors (see below), whose sum is σ = 4063236480. Its totient is φ = 902691120.

The previous prime is 2257040671. The next prime is 2257040707. The reversal of 2257040690 is 960407522.

It is a super-2 number, since 2×2257040690² = 10188465352631352200, 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 2257040690.

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, 102785 + ... + 122795.

It is an arithmetic number, because the mean of its divisors is an integer number (253952280).

Almost surely, 2^2257040690 is an apocalyptic number.

2257040690 is a deficient number, since it is larger than the sum of its proper divisors (1806195790).

2257040690 is a wasteful number, since it uses less digits than its factorization.

2257040690 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31297.

The product of its (nonzero) digits is 30240, while the sum is 35.

The square root of 2257040690 is about 47508.3223235677. The cubic root of 2257040690 is about 1311.7360759679.

The spelling of 2257040690 in words is "two billion, two hundred fifty-seven million, forty thousand, six hundred ninety".