1642274 has 8 divisors (see below), whose sum is σ = 2515968. Its totient is φ = 803620.

The previous prime is 1642273. The next prime is 1642279. The reversal of 1642274 is 4722461.

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

It is a plaindrome in base 13 and base 15.

It is not an unprimeable number, because it can be changed into a prime (1642273) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8642 + ... + 8829.

It is an arithmetic number, because the mean of its divisors is an integer number (314496).

2^1642274 is an apocalyptic number.

1642274 is a deficient number, since it is larger than the sum of its proper divisors (873694).

1642274 is a wasteful number, since it uses less digits than its factorization.

1642274 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17520.

The product of its digits is 2688, while the sum is 26.

The square root of 1642274 is about 1281.5123877669. The cubic root of 1642274 is about 117.9818510822.

The spelling of 1642274 in words is "one million, six hundred forty-two thousand, two hundred seventy-four".