2277640140 has 24 divisors (see below), whose sum is σ = 6377392560. Its totient is φ = 607370688.

The previous prime is 2277640121. The next prime is 2277640247. The reversal of 2277640140 is 410467722.

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, 18980275 + ... + 18980394.

It is an arithmetic number, because the mean of its divisors is an integer number (265724690).

Almost surely, 2^2277640140 is an apocalyptic number.

2277640140 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2277640140 is an abundant number, since it is smaller than the sum of its proper divisors (4099752420).

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

2277640140 is a wasteful number, since it uses less digits than its factorization.

2277640140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37960681 (or 37960679 counting only the distinct ones).

The product of its (nonzero) digits is 18816, while the sum is 33.

The square root of 2277640140 is about 47724.6282332299. The cubic root of 2277640140 is about 1315.7146264866.

The spelling of 2277640140 in words is "two billion, two hundred seventy-seven million, six hundred forty thousand, one hundred forty".