1248890880 has 104 divisors (see below), whose sum is σ = 3996159552. Its totient is φ = 333021184.

The previous prime is 1248890879. The next prime is 1248890891. The reversal of 1248890880 is 880988421.

It is a Harshad number since it is a multiple of its sum of digits (48).

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, 51277 + ... + 71603.

Almost surely, 2^1248890880 is an apocalyptic number.

1248890880 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 1248890880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1998079776).

1248890880 is an abundant number, since it is smaller than the sum of its proper divisors (2747268672).

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

1248890880 is an equidigital number, since it uses as much as digits as its factorization.

1248890880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20359 (or 20337 counting only the distinct ones).

The product of its (nonzero) digits is 294912, while the sum is 48.

The square root of 1248890880 is about 35339.6502529383. The cubic root of 1248890880 is about 1076.8986471905.

The spelling of 1248890880 in words is "one billion, two hundred forty-eight million, eight hundred ninety thousand, eight hundred eighty".