425427156 has 144 divisors (see below), whose sum is σ = 1350236160. Its totient is φ = 109719360.

The previous prime is 425427151. The next prime is 425427173. The reversal of 425427156 is 651724524.

It is a happy number.

425427156 is a `hidden beast` number, since 42 + 542 + 71 + 5 + 6 = 666.

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 425427156.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (425427151) by changing a digit.

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, 462465 + ... + 463383.

It is an arithmetic number, because the mean of its divisors is an integer number (9376640).

Almost surely, 2^425427156 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 425427156, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (675118080).

425427156 is an abundant number, since it is smaller than the sum of its proper divisors (924809004).

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

425427156 is a wasteful number, since it uses less digits than its factorization.

425427156 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1114 (or 1109 counting only the distinct ones).

The product of its digits is 67200, while the sum is 36.

The square root of 425427156 is about 20625.8855809878. The cubic root of 425427156 is about 752.0991008863.

The spelling of 425427156 in words is "four hundred twenty-five million, four hundred twenty-seven thousand, one hundred fifty-six".