1372642 has 4 divisors (see below), whose sum is σ = 2058966. Its totient is φ = 686320.

The previous prime is 1372633. The next prime is 1372661. The reversal of 1372642 is 2462731.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 1320201 + 52441 = 1149^2 + 229^2 .

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 as a sum of consecutive naturals, namely, 343159 + ... + 343162.

2^1372642 is an apocalyptic number.

1372642 is a deficient number, since it is larger than the sum of its proper divisors (686324).

1372642 is an equidigital number, since it uses as much as digits as its factorization.

1372642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 686323.

The product of its digits is 2016, while the sum is 25.

The square root of 1372642 is about 1171.5980539417. The cubic root of 1372642 is about 111.1354027629.

The spelling of 1372642 in words is "one million, three hundred seventy-two thousand, six hundred forty-two".