426139056 has 200 divisors, whose sum is σ = 1425980160. Its totient is φ = 120341376.

The previous prime is 426139039. The next prime is 426139057. The reversal of 426139056 is 650931624.

It is a happy number.

426139056 is a `hidden beast` number, since 4 + 261 + 390 + 5 + 6 = 666.

It is a super-2 number, since 2×426139056² = 363188990097142272, which contains 22 as substring.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 426139056.

It is not an unprimeable number, because it can be changed into a prime (426139057) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 970485 + ... + 970923.

Almost surely, 2^426139056 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 426139056, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (712990080).

426139056 is an abundant number, since it is smaller than the sum of its proper divisors (999841104).

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

426139056 is a wasteful number, since it uses less digits than its factorization.

426139056 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 573 (or 558 counting only the distinct ones).

The product of its (nonzero) digits is 38880, while the sum is 36.

The square root of 426139056 is about 20643.1358083020. The cubic root of 426139056 is about 752.5183822031.

The spelling of 426139056 in words is "four hundred twenty-six million, one hundred thirty-nine thousand, fifty-six".