1077745280 has 32 divisors (see below), whose sum is σ = 2576486340. Its totient is φ = 431097856.

The previous prime is 1077745261. The next prime is 1077745327. The reversal of 1077745280 is 825477701.

It can be written as a sum of positive squares in 2 ways, for example, as 874739776 + 203005504 = 29576^2 + 14248^2 .

It is a tau number, because it is divible by the number of its divisors (32).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 841349 + ... + 842628.

Almost surely, 2^1077745280 is an apocalyptic number.

1077745280 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1077745280 is an abundant number, since it is smaller than the sum of its proper divisors (1498741060).

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

1077745280 is an equidigital number, since it uses as much as digits as its factorization.

1077745280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1683996 (or 1683984 counting only the distinct ones).

The product of its (nonzero) digits is 109760, while the sum is 41.

The square root of 1077745280 is about 32829.0310548453. The cubic root of 1077745280 is about 1025.2710859427.

The spelling of 1077745280 in words is "one billion, seventy-seven million, seven hundred forty-five thousand, two hundred eighty".