6442374 has 8 divisors (see below), whose sum is σ = 12884760. Its totient is φ = 2147456.

The previous prime is 6442367. The next prime is 6442399. The reversal of 6442374 is 4732446.

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

6442374 is an admirable number.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 536859 + ... + 536870.

It is an arithmetic number, because the mean of its divisors is an integer number (1610595).

Almost surely, 2^6442374 is an apocalyptic number.

6442374 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

6442374 is a wasteful number, since it uses less digits than its factorization.

6442374 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1073734.

The product of its digits is 16128, while the sum is 30.

The square root of 6442374 is about 2538.1832085175. The cubic root of 6442374 is about 186.0724079284.

Subtracting from 6442374 its product of digits (16128), we obtain a palindrome (6426246).

The spelling of 6442374 in words is "six million, four hundred forty-two thousand, three hundred seventy-four".