426587280 has 160 divisors (see below), whose sum is σ = 1560281088. Its totient is φ = 94348800.

The previous prime is 426587263. The next prime is 426587299. The reversal of 426587280 is 82785624.

It is a happy number.

It is a super-3 number, since 3×426587280³ (a number of 27 digits) contains 333 as substring.

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

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 31 ways as a sum of consecutive naturals, for example, 47985 + ... + 56175.

Almost surely, 2^426587280 is an apocalyptic number.

426587280 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 426587280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (780140544).

426587280 is an abundant number, since it is smaller than the sum of its proper divisors (1133693808).

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

426587280 is a wasteful number, since it uses less digits than its factorization.

426587280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8245 (or 8239 counting only the distinct ones).

The product of its (nonzero) digits is 215040, while the sum is 42.

The square root of 426587280 is about 20653.9894451411. The cubic root of 426587280 is about 752.7821291377.

The spelling of 426587280 in words is "four hundred twenty-six million, five hundred eighty-seven thousand, two hundred eighty".