1282423320 has 64 divisors (see below), whose sum is σ = 4274748000. Its totient is φ = 341979264.

The previous prime is 1282423319. The next prime is 1282423381. The reversal of 1282423320 is 233242821.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

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, 592635 + ... + 594794.

Almost surely, 2^1282423320 is an apocalyptic number.

1282423320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1282423320 is an abundant number, since it is smaller than the sum of its proper divisors (2992324680).

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

1282423320 is a wasteful number, since it uses less digits than its factorization.

1282423320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1187449 (or 1187439 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 27.

The square root of 1282423320 is about 35810.9385523474. The cubic root of 1282423320 is about 1086.4518128591.

The spelling of 1282423320 in words is "one billion, two hundred eighty-two million, four hundred twenty-three thousand, three hundred twenty".