426561273 has 12 divisors (see below), whose sum is σ = 616526820. Its totient is φ = 284197536.

The previous prime is 426561269. The next prime is 426561281. The reversal of 426561273 is 372165624.

426561273 is a `hidden beast` number, since 4 + 26 + 561 + 2 + 73 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 84052224 + 342509049 = 9168^2 + 18507^2 .

It is not a de Polignac number, because 426561273 - 2² = 426561269 is a prime.

It is not an unprimeable number, because it can be changed into a prime (426561293) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1515 + ... + 29247.

It is an arithmetic number, because the mean of its divisors is an integer number (51377235).

Almost surely, 2^426561273 is an apocalyptic number.

It is an amenable number.

426561273 is a deficient number, since it is larger than the sum of its proper divisors (189965547).

426561273 is a wasteful number, since it uses less digits than its factorization.

426561273 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29448 (or 29445 counting only the distinct ones).

The product of its digits is 60480, while the sum is 36.

The square root of 426561273 is about 20653.3598477342. The cubic root of 426561273 is about 752.7668309767.

The spelling of 426561273 in words is "four hundred twenty-six million, five hundred sixty-one thousand, two hundred seventy-three".