1827297980 has 48 divisors (see below), whose sum is σ = 3867363360. Its totient is φ = 725222400.

The previous prime is 1827297977. The next prime is 1827298003. The reversal of 1827297980 is 897927281.

It is a happy number.

It is a congruent number.

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, 2400800 + ... + 2401560.

It is an arithmetic number, because the mean of its divisors is an integer number (80570070).

Almost surely, 2^1827297980 is an apocalyptic number.

1827297980 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1827297980 is an abundant number, since it is smaller than the sum of its proper divisors (2040065380).

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

1827297980 is a wasteful number, since it uses less digits than its factorization.

1827297980 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1550 (or 1548 counting only the distinct ones).

The product of its (nonzero) digits is 1016064, while the sum is 53.

The square root of 1827297980 is about 42746.9060868737. The cubic root of 1827297980 is about 1222.5588994195.

The spelling of 1827297980 in words is "one billion, eight hundred twenty-seven million, two hundred ninety-seven thousand, nine hundred eighty".