1387442 has 8 divisors (see below), whose sum is σ = 2378496. Its totient is φ = 594612.

The previous prime is 1387433. The next prime is 1387499. The reversal of 1387442 is 2447831.

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 49538 + ... + 49565.

It is an arithmetic number, because the mean of its divisors is an integer number (297312).

2^1387442 is an apocalyptic number.

1387442 is a deficient number, since it is larger than the sum of its proper divisors (991054).

1387442 is an equidigital number, since it uses as much as digits as its factorization.

1387442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 99112.

The product of its digits is 5376, while the sum is 29.

The square root of 1387442 is about 1177.8972790528. The cubic root of 1387442 is about 111.5334010814.

The spelling of 1387442 in words is "one million, three hundred eighty-seven thousand, four hundred forty-two".