1428227980 has 12 divisors (see below), whose sum is σ = 2999278800. Its totient is φ = 571291184.

The previous prime is 1428227959. The next prime is 1428227993. The reversal of 1428227980 is 897228241.

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, 35705680 + ... + 35705719.

It is an arithmetic number, because the mean of its divisors is an integer number (249939900).

Almost surely, 2^1428227980 is an apocalyptic number.

1428227980 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1428227980 is an abundant number, since it is smaller than the sum of its proper divisors (1571050820).

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

1428227980 is a wasteful number, since it uses less digits than its factorization.

1428227980 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71411408 (or 71411406 counting only the distinct ones).

The product of its (nonzero) digits is 129024, while the sum is 43.

The square root of 1428227980 is about 37791.9036302751. The cubic root of 1428227980 is about 1126.1576179571.

The spelling of 1428227980 in words is "one billion, four hundred twenty-eight million, two hundred twenty-seven thousand, nine hundred eighty".