1027279812 has 48 divisors (see below), whose sum is σ = 2590602560. Its totient is φ = 314955648.

The previous prime is 1027279807. The next prime is 1027279831. The reversal of 1027279812 is 2189727201.

It is a Harshad number since it is a multiple of its sum of digits (39).

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, 32514 + ... + 55782.

Almost surely, 2^1027279812 is an apocalyptic number.

1027279812 is a gapful number since it is divisible by the number (12) 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 1027279812, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1295301280).

1027279812 is an abundant number, since it is smaller than the sum of its proper divisors (1563322748).

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

1027279812 is a wasteful number, since it uses less digits than its factorization.

1027279812 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23572 (or 23570 counting only the distinct ones).

The product of its (nonzero) digits is 28224, while the sum is 39.

The square root of 1027279812 is about 32051.2060927510. The cubic root of 1027279812 is about 1009.0118139184.

The spelling of 1027279812 in words is "one billion, twenty-seven million, two hundred seventy-nine thousand, eight hundred twelve".