426569274 has 64 divisors (see below), whose sum is σ = 976250880. Its totient is φ = 137994480.

The previous prime is 426569267. The next prime is 426569291. The reversal of 426569274 is 472965624.

It is a super-2 number, since 2×426569274² = 363922691041774152, which contains 22 as substring.

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 331837 + ... + 333119.

It is an arithmetic number, because the mean of its divisors is an integer number (15253920).

Almost surely, 2^426569274 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 426569274, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (488125440).

426569274 is an abundant number, since it is smaller than the sum of its proper divisors (549681606).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

426569274 is a wasteful number, since it uses less digits than its factorization.

426569274 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1472 (or 1466 counting only the distinct ones).

The product of its digits is 725760, while the sum is 45.

The square root of 426569274 is about 20653.5535441241. The cubic root of 426569274 is about 752.7715374907.

The spelling of 426569274 in words is "four hundred twenty-six million, five hundred sixty-nine thousand, two hundred seventy-four".