426240705 has 32 divisors (see below), whose sum is σ = 751379328. Its totient is φ = 204608000.

The previous prime is 426240673. The next prime is 426240709. The reversal of 426240705 is 507042624.

It is not a de Polignac number, because 426240705 - 2⁵ = 426240673 is a prime.

It is a super-2 number, since 2×426240705² = 363362277197794050, which contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (426240709) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3877 + ... + 29453.

It is an arithmetic number, because the mean of its divisors is an integer number (23480604).

Almost surely, 2^426240705 is an apocalyptic number.

It is an amenable number.

426240705 is a deficient number, since it is larger than the sum of its proper divisors (325138623).

426240705 is a wasteful number, since it uses less digits than its factorization.

426240705 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25697.

The product of its (nonzero) digits is 13440, while the sum is 30.

The square root of 426240705 is about 20645.5977147672. The cubic root of 426240705 is about 752.5782113901.

The spelling of 426240705 in words is "four hundred twenty-six million, two hundred forty thousand, seven hundred five".