1387841464 has 16 divisors (see below), whose sum is σ = 2651301720. Its totient is φ = 680827680.

The previous prime is 1387841443. The next prime is 1387841501. The reversal of 1387841464 is 4641487831.

It is a super-2 number, since 2×1387841464² = 3852207858395326592, 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 3 ways as a sum of consecutive naturals, for example, 1636182 + ... + 1637029.

Almost surely, 2^1387841464 is an apocalyptic number.

It is an amenable number.

1387841464 is a deficient number, since it is larger than the sum of its proper divisors (1263460256).

1387841464 is a wasteful number, since it uses less digits than its factorization.

1387841464 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3273270 (or 3273266 counting only the distinct ones).

The product of its digits is 516096, while the sum is 46.

The square root of 1387841464 is about 37253.7442950370. The cubic root of 1387841464 is about 1115.4410406417.

The spelling of 1387841464 in words is "one billion, three hundred eighty-seven million, eight hundred forty-one thousand, four hundred sixty-four".