1880256040 has 64 divisors (see below), whose sum is σ = 4561900560. Its totient is φ = 693350400.

The previous prime is 1880256031. The next prime is 1880256061. The reversal of 1880256040 is 406520881.

It can be written as a sum of positive squares in 8 ways, for example, as 844832356 + 1035423684 = 29066^2 + 32178^2 .

It is a junction number, because it is equal to n+sod(n) for n = 1880255987 and 1880256005.

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, 506190 + ... + 509890.

Almost surely, 2^1880256040 is an apocalyptic number.

1880256040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1880256040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2280950280).

1880256040 is an abundant number, since it is smaller than the sum of its proper divisors (2681644520).

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

1880256040 is a wasteful number, since it uses less digits than its factorization.

1880256040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4702 (or 4698 counting only the distinct ones).

The product of its (nonzero) digits is 15360, while the sum is 34.

The square root of 1880256040 is about 43361.9192379673. The cubic root of 1880256040 is about 1234.2571852433.

The spelling of 1880256040 in words is "one billion, eight hundred eighty million, two hundred fifty-six thousand, forty".