2263173440 has 56 divisors (see below), whose sum is σ = 5879116512. Its totient is φ = 822970880.

The previous prime is 2263173403. The next prime is 2263173491. The reversal of 2263173440 is 443713622.

It is a Harshad number since it is a multiple of its sum of digits (32).

It is a junction number, because it is equal to n+sod(n) for n = 2263173397 and 2263173406.

It is a congruent number.

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, 317954 + ... + 324993.

Almost surely, 2^2263173440 is an apocalyptic number.

2263173440 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2263173440 is an abundant number, since it is smaller than the sum of its proper divisors (3615943072).

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

2263173440 is a wasteful number, since it uses less digits than its factorization.

2263173440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 642975 (or 642965 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 32.

The square root of 2263173440 is about 47572.8224935204. The cubic root of 2263173440 is about 1312.9230689353.

The spelling of 2263173440 in words is "two billion, two hundred sixty-three million, one hundred seventy-three thousand, four hundred forty".