2285578440 has 48 divisors (see below), whose sum is σ = 7428131100. Its totient is φ = 609487488.

The previous prime is 2285578433. The next prime is 2285578483. The reversal of 2285578440 is 448755822.

It can be written as a sum of positive squares in 2 ways, for example, as 2225763684 + 59814756 = 47178^2 + 7734^2 .

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 11 ways as a sum of consecutive naturals, for example, 3174055 + ... + 3174774.

Almost surely, 2^2285578440 is an apocalyptic number.

2285578440 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2285578440 is an abundant number, since it is smaller than the sum of its proper divisors (5142552660).

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

2285578440 is a wasteful number, since it uses less digits than its factorization.

2285578440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6348846 (or 6348839 counting only the distinct ones).

The product of its (nonzero) digits is 716800, while the sum is 45.

The square root of 2285578440 is about 47807.7236437796. The cubic root of 2285578440 is about 1317.2414153326.

The spelling of 2285578440 in words is "two billion, two hundred eighty-five million, five hundred seventy-eight thousand, four hundred forty".