6840372 has 72 divisors (see below), whose sum is σ = 20079808. Its totient is φ = 1774080.

The previous prime is 6840371. The next prime is 6840377. The reversal of 6840372 is 2730486.

It is a hoax number, since the sum of its digits (30) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6840371) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 9828 + ... + 10500.

Almost surely, 2^6840372 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6840372, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10039904).

6840372 is an abundant number, since it is smaller than the sum of its proper divisors (13239436).

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

6840372 is a wasteful number, since it uses less digits than its factorization.

6840372 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 709 (or 696 counting only the distinct ones).

The product of its (nonzero) digits is 8064, while the sum is 30.

The square root of 6840372 is about 2615.4104840350. The cubic root of 6840372 is about 189.8278403592.

The spelling of 6840372 in words is "six million, eight hundred forty thousand, three hundred seventy-two".