1282897420 has 36 divisors (see below), whose sum is σ = 3133937520. Its totient is φ = 439850208.

The previous prime is 1282897393. The next prime is 1282897457. The reversal of 1282897420 is 247982821.

It is a hoax number, since the sum of its digits (43) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 653560 + ... + 655519.

It is an arithmetic number, because the mean of its divisors is an integer number (87053820).

Almost surely, 2^1282897420 is an apocalyptic number.

1282897420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1282897420 is an abundant number, since it is smaller than the sum of its proper divisors (1851040100).

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

1282897420 is a wasteful number, since it uses less digits than its factorization.

1282897420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1309102 (or 1309093 counting only the distinct ones).

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

The square root of 1282897420 is about 35817.5574264913. The cubic root of 1282897420 is about 1086.5856800815.

The spelling of 1282897420 in words is "one billion, two hundred eighty-two million, eight hundred ninety-seven thousand, four hundred twenty".