1428248880 has 120 divisors (see below), whose sum is σ = 5078728512. Its totient is φ = 358459392.

The previous prime is 1428248879. The next prime is 1428248881. The reversal of 1428248880 is 888428241.

1428248880 is a `hidden beast` number, since 14 + 2 + 82 + 488 + 80 = 666.

It is an interprime number because it is at equal distance from previous prime (1428248879) and next prime (1428248881).

It is a tau number, because it is divible by the number of its divisors (120).

It is a Harshad number since it is a multiple of its sum of digits (45).

It is not an unprimeable number, because it can be changed into a prime (1428248881) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 46104 + ... + 70583.

Almost surely, 2^1428248880 is an apocalyptic number.

1428248880 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1428248880 is an abundant number, since it is smaller than the sum of its proper divisors (3650479632).

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

1428248880 is a wasteful number, since it uses less digits than its factorization.

1428248880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 116723 (or 116714 counting only the distinct ones).

The product of its (nonzero) digits is 262144, while the sum is 45.

The square root of 1428248880 is about 37792.1801435165. The cubic root of 1428248880 is about 1126.1631111463.

The spelling of 1428248880 in words is "one billion, four hundred twenty-eight million, two hundred forty-eight thousand, eight hundred eighty".