2269987440 has 80 divisors (see below), whose sum is σ = 8042247168. Its totient is φ = 518853888.

The previous prime is 2269987411. The next prime is 2269987451. The reversal of 2269987440 is 447899622.

It is a tau number, because it is divible by the number of its divisors (80).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 673912 + ... + 677271.

Almost surely, 2^2269987440 is an apocalyptic number.

2269987440 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2269987440 is an abundant number, since it is smaller than the sum of its proper divisors (5772259728).

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

2269987440 is a wasteful number, since it uses less digits than its factorization.

2269987440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1351206 (or 1351200 counting only the distinct ones).

The product of its (nonzero) digits is 1741824, while the sum is 51.

The square root of 2269987440 is about 47644.3851886033. The cubic root of 2269987440 is about 1314.2394055607.

The spelling of 2269987440 in words is "two billion, two hundred sixty-nine million, nine hundred eighty-seven thousand, four hundred forty".