6215742 has 48 divisors (see below), whose sum is σ = 14702688. Its totient is φ = 1886400.

The previous prime is 6215719. The next prime is 6215771. The reversal of 6215742 is 2475126.

It is a super-2 number, since 2×6215742² = 77270897221128, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 23503 + ... + 23765.

It is an arithmetic number, because the mean of its divisors is an integer number (306306).

Almost surely, 2^6215742 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6215742, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7351344).

6215742 is an abundant number, since it is smaller than the sum of its proper divisors (8486946).

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

6215742 is a wasteful number, since it uses less digits than its factorization.

6215742 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 385 (or 382 counting only the distinct ones).

The product of its digits is 3360, while the sum is 27.

The square root of 6215742 is about 2493.1389852954. The cubic root of 6215742 is about 183.8644046685.

The spelling of 6215742 in words is "six million, two hundred fifteen thousand, seven hundred forty-two".