1822979816 has 32 divisors (see below), whose sum is σ = 4076231040. Its totient is φ = 747307968.

The previous prime is 1822979801. The next prime is 1822979863. The reversal of 1822979816 is 6189792281.

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, 706391 + ... + 708966.

It is an arithmetic number, because the mean of its divisors is an integer number (127382220).

Almost surely, 2^1822979816 is an apocalyptic number.

It is an amenable number.

1822979816 is an abundant number, since it is smaller than the sum of its proper divisors (2253251224).

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

1822979816 is a wasteful number, since it uses less digits than its factorization.

1822979816 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1415393 (or 1415389 counting only the distinct ones).

The product of its digits is 870912, while the sum is 53.

The square root of 1822979816 is about 42696.3677143618. The cubic root of 1822979816 is about 1221.5951132062.

The spelling of 1822979816 in words is "one billion, eight hundred twenty-two million, nine hundred seventy-nine thousand, eight hundred sixteen".