426240215 has 8 divisors (see below), whose sum is σ = 511599888. Its totient is φ = 340917760.

The previous prime is 426240203. The next prime is 426240229. The reversal of 426240215 is 512042624.

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

It is a de Polignac number, because none of the positive numbers 2^k-426240215 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 35639 + ... + 46071.

It is an arithmetic number, because the mean of its divisors is an integer number (63949986).

Almost surely, 2^426240215 is an apocalyptic number.

426240215 is a deficient number, since it is larger than the sum of its proper divisors (85359673).

426240215 is a wasteful number, since it uses less digits than its factorization.

426240215 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18609.

The product of its (nonzero) digits is 3840, while the sum is 26.

The square root of 426240215 is about 20645.5858478271. The cubic root of 426240215 is about 752.5779230057.

Adding to 426240215 its reverse (512042624), we get a palindrome (938282839).

The spelling of 426240215 in words is "four hundred twenty-six million, two hundred forty thousand, two hundred fifteen".