426776280 has 192 divisors, whose sum is σ = 1501325280. Its totient is φ = 96768000.

The previous prime is 426776263. The next prime is 426776291. The reversal of 426776280 is 82677624.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1064080 + ... + 1064480.

Almost surely, 2^426776280 is an apocalyptic number.

426776280 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 426776280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (750662640).

426776280 is an abundant number, since it is smaller than the sum of its proper divisors (1074549000).

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

426776280 is a wasteful number, since it uses less digits than its factorization.

426776280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 610 (or 599 counting only the distinct ones).

The product of its (nonzero) digits is 225792, while the sum is 42.

The square root of 426776280 is about 20658.5643257222. The cubic root of 426776280 is about 752.8932863947.

The spelling of 426776280 in words is "four hundred twenty-six million, seven hundred seventy-six thousand, two hundred eighty".