2239765440 has 112 divisors (see below), whose sum is σ = 7757769600. Its totient is φ = 542970880.

The previous prime is 2239765421. The next prime is 2239765457. The reversal of 2239765440 is 445679322.

It is a junction number, because it is equal to n+sod(n) for n = 2239765392 and 2239765401.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 95490 + ... + 116609.

It is an arithmetic number, because the mean of its divisors is an integer number (69265800).

Almost surely, 2^2239765440 is an apocalyptic number.

2239765440 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2239765440 is an abundant number, since it is smaller than the sum of its proper divisors (5518004160).

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

2239765440 is a wasteful number, since it uses less digits than its factorization.

2239765440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 212130 (or 212120 counting only the distinct ones).

The product of its (nonzero) digits is 362880, while the sum is 42.

The square root of 2239765440 is about 47326.1602076484. The cubic root of 2239765440 is about 1308.3808521649.

The spelling of 2239765440 in words is "two billion, two hundred thirty-nine million, seven hundred sixty-five thousand, four hundred forty".