2257734340 has 24 divisors (see below), whose sum is σ = 4894186752. Its totient is φ = 873961440.

The previous prime is 2257734329. The next prime is 2257734341. The reversal of 2257734340 is 434377522.

It is a hoax number, since the sum of its digits (37) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 2257734340.

It is not an unprimeable number, because it can be changed into a prime (2257734341) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1820134 + ... + 1821373.

It is an arithmetic number, because the mean of its divisors is an integer number (203924448).

Almost surely, 2^2257734340 is an apocalyptic number.

2257734340 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2257734340 is an abundant number, since it is smaller than the sum of its proper divisors (2636452412).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2257734340 is a wasteful number, since it uses less digits than its factorization.

2257734340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3641547 (or 3641545 counting only the distinct ones).

The product of its (nonzero) digits is 141120, while the sum is 37.

The square root of 2257734340 is about 47515.6220626438. The cubic root of 2257734340 is about 1311.8704395970.

The spelling of 2257734340 in words is "two billion, two hundred fifty-seven million, seven hundred thirty-four thousand, three hundred forty".