1012280880 has 80 divisors (see below), whose sum is σ = 3379471200. Its totient is φ = 249176064.

The previous prime is 1012280837. The next prime is 1012280887. The reversal of 1012280880 is 880822101.

It is a tau number, because it is divible by the number of its divisors (80).

It is a Harshad number since it is a multiple of its sum of digits (30).

It is not an unprimeable number, because it can be changed into a prime (1012280887) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 159105 + ... + 165344.

It is an arithmetic number, because the mean of its divisors is an integer number (42243390).

Almost surely, 2^1012280880 is an apocalyptic number.

1012280880 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1012280880 is an abundant number, since it is smaller than the sum of its proper divisors (2367190320).

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

1012280880 is a wasteful number, since it uses less digits than its factorization.

1012280880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 324478 (or 324472 counting only the distinct ones).

The product of its (nonzero) digits is 2048, while the sum is 30.

The square root of 1012280880 is about 31816.3618284681. The cubic root of 1012280880 is about 1004.0769822931.

The spelling of 1012280880 in words is "one billion, twelve million, two hundred eighty thousand, eight hundred eighty".