1287424364 has 6 divisors (see below), whose sum is σ = 2252992644. Its totient is φ = 643712180.

The previous prime is 1287424301. The next prime is 1287424373. The reversal of 1287424364 is 4634247821.

It is a super-2 number, since 2×1287424364² = 3314922986041608992, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 160928042 + ... + 160928049.

It is an arithmetic number, because the mean of its divisors is an integer number (375498774).

Almost surely, 2^1287424364 is an apocalyptic number.

It is an amenable number.

1287424364 is a deficient number, since it is larger than the sum of its proper divisors (965568280).

1287424364 is a wasteful number, since it uses less digits than its factorization.

1287424364 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 321856095 (or 321856093 counting only the distinct ones).

The product of its digits is 258048, while the sum is 41.

The square root of 1287424364 is about 35880.6962585734. The cubic root of 1287424364 is about 1087.8622534577.

The spelling of 1287424364 in words is "one billion, two hundred eighty-seven million, four hundred twenty-four thousand, three hundred sixty-four".