1284868734 has 32 divisors (see below), whose sum is σ = 2753948160. Its totient is φ = 398594592.

The previous prime is 1284868709. The next prime is 1284868763. The reversal of 1284868734 is 4378684821.

It is a super-2 number, since 2×1284868734² = 3301775327221525512, which contains 22 as substring.

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, 120714 + ... + 130925.

It is an arithmetic number, because the mean of its divisors is an integer number (86060880).

Almost surely, 2^1284868734 is an apocalyptic number.

1284868734 is an abundant number, since it is smaller than the sum of its proper divisors (1469079426).

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

1284868734 is a wasteful number, since it uses less digits than its factorization.

1284868734 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 251704.

The product of its digits is 2064384, while the sum is 51.

The square root of 1284868734 is about 35845.0656855306. The cubic root of 1284868734 is about 1087.1419483444.

The spelling of 1284868734 in words is "one billion, two hundred eighty-four million, eight hundred sixty-eight thousand, seven hundred thirty-four".