426756645 has 48 divisors (see below), whose sum is σ = 848145792. Its totient is φ = 194451840.

The previous prime is 426756637. The next prime is 426756719. The reversal of 426756645 is 546657624.

426756645 is a `hidden beast` number, since 42 + 6 + 7 + 566 + 45 = 666.

It is not a de Polignac number, because 426756645 - 2³ = 426756637 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 426756645.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 102219 + ... + 106311.

It is an arithmetic number, because the mean of its divisors is an integer number (17669704).

Almost surely, 2^426756645 is an apocalyptic number.

426756645 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

It is an amenable number.

426756645 is a deficient number, since it is larger than the sum of its proper divisors (421389147).

426756645 is a wasteful number, since it uses less digits than its factorization.

426756645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4442 (or 4439 counting only the distinct ones).

The product of its digits is 1209600, while the sum is 45.

The square root of 426756645 is about 20658.0890936214. The cubic root of 426756645 is about 752.8817399186.

The spelling of 426756645 in words is "four hundred twenty-six million, seven hundred fifty-six thousand, six hundred forty-five".