1427205804 has 24 divisors (see below), whose sum is σ = 3361272768. Its totient is φ = 471288720.

The previous prime is 1427205803. The next prime is 1427205817. The reversal of 1427205804 is 4085027241.

It is not an unprimeable number, because it can be changed into a prime (1427205803) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 554482 + ... + 557049.

It is an arithmetic number, because the mean of its divisors is an integer number (140053032).

Almost surely, 2^1427205804 is an apocalyptic number.

It is an amenable number.

1427205804 is an abundant number, since it is smaller than the sum of its proper divisors (1934066964).

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

1427205804 is a wasteful number, since it uses less digits than its factorization.

1427205804 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1111645 (or 1111643 counting only the distinct ones).

The product of its (nonzero) digits is 17920, while the sum is 33.

The square root of 1427205804 is about 37778.3774664821. The cubic root of 1427205804 is about 1125.8888919474. Note that the first 4 decimals are identical.

The spelling of 1427205804 in words is "one billion, four hundred twenty-seven million, two hundred five thousand, eight hundred four".