4215742 has 8 divisors (see below), whose sum is σ = 6332616. Its totient is φ = 2104872.

The previous prime is 4215719. The next prime is 4215749. The reversal of 4215742 is 2475124.

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

It is a super-2 number, since 2×4215742² = 35544961221128, which contains 22 as substring.

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4215749) by changing a digit.

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 in 3 ways as a sum of consecutive naturals, for example, 1308 + ... + 3184.

It is an arithmetic number, because the mean of its divisors is an integer number (791577).

Almost surely, 2^4215742 is an apocalyptic number.

4215742 is a deficient number, since it is larger than the sum of its proper divisors (2116874).

4215742 is a wasteful number, since it uses less digits than its factorization.

4215742 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3002.

The product of its digits is 2240, while the sum is 25.

The square root of 4215742 is about 2053.2272158726. The cubic root of 4215742 is about 161.5441894242.

The spelling of 4215742 in words is "four million, two hundred fifteen thousand, seven hundred forty-two".