1373638 has 16 divisors (see below), whose sum is σ = 2396160. Its totient is φ = 578376.

The previous prime is 1373627. The next prime is 1373639. The reversal of 1373638 is 8363731.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1373639) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6 + ... + 1657.

It is an arithmetic number, because the mean of its divisors is an integer number (149760).

2^1373638 is an apocalyptic number.

1373638 is a deficient number, since it is larger than the sum of its proper divisors (1022522).

1373638 is a wasteful number, since it uses less digits than its factorization.

1373638 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1731.

The product of its digits is 9072, while the sum is 31.

The square root of 1373638 is about 1172.0230373162. The cubic root of 1373638 is about 111.1622765094.

The spelling of 1373638 in words is "one million, three hundred seventy-three thousand, six hundred thirty-eight".