426420785 has 24 divisors (see below), whose sum is σ = 615784680. Its totient is φ = 282315264.

The previous prime is 426420767. The next prime is 426420793. The reversal of 426420785 is 587024624.

It can be written as a sum of positive squares in 4 ways, for example, as 115004176 + 311416609 = 10724^2 + 17647^2 .

It is not a de Polignac number, because 426420785 - 2¹⁴ = 426404401 is a prime.

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, 22904 + ... + 37113.

It is an arithmetic number, because the mean of its divisors is an integer number (25657695).

Almost surely, 2^426420785 is an apocalyptic number.

It is an amenable number.

426420785 is a deficient number, since it is larger than the sum of its proper divisors (189363895).

426420785 is a wasteful number, since it uses less digits than its factorization.

426420785 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60065 (or 60058 counting only the distinct ones).

The product of its (nonzero) digits is 107520, while the sum is 38.

The square root of 426420785 is about 20649.9584745345. The cubic root of 426420785 is about 752.6841806242.

The spelling of 426420785 in words is "four hundred twenty-six million, four hundred twenty thousand, seven hundred eighty-five".