2292776640 has 672 divisors, whose sum is σ = 10080345600. Its totient is φ = 474163200.

The previous prime is 2292776623. The next prime is 2292776653. The reversal of 2292776640 is 466772922.

It is a tau number, because it is divible by the number of its divisors (672).

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 10866135 + ... + 10866345.

Almost surely, 2^2292776640 is an apocalyptic number.

2292776640 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2292776640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5040172800).

2292776640 is an abundant number, since it is smaller than the sum of its proper divisors (7787568960).

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

2292776640 is a wasteful number, since it uses less digits than its factorization.

2292776640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 266 (or 239 counting only the distinct ones).

The product of its (nonzero) digits is 508032, while the sum is 45.

The square root of 2292776640 is about 47882.9472777105. The cubic root of 2292776640 is about 1318.6228060579.

The spelling of 2292776640 in words is "two billion, two hundred ninety-two million, seven hundred seventy-six thousand, six hundred forty".