1387124326 has 32 divisors (see below), whose sum is σ = 2467123200. Its totient is φ = 572378400.

The previous prime is 1387124311. The next prime is 1387124327. The reversal of 1387124326 is 6234217831.

It is a happy number.

It is a super-2 number, since 2×1387124326² = 3848227791561908552, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1387124327) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 78336 + ... + 94396.

It is an arithmetic number, because the mean of its divisors is an integer number (77097600).

Almost surely, 2^1387124326 is an apocalyptic number.

1387124326 is a deficient number, since it is larger than the sum of its proper divisors (1079998874).

1387124326 is a wasteful number, since it uses less digits than its factorization.

1387124326 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16300.

The product of its digits is 48384, while the sum is 37.

The square root of 1387124326 is about 37244.1180053978. The cubic root of 1387124326 is about 1115.2488806103.

The spelling of 1387124326 in words is "one billion, three hundred eighty-seven million, one hundred twenty-four thousand, three hundred twenty-six".