425188764 has 576 divisors, whose sum is σ = 1643765760. Its totient is φ = 92378880.

The previous prime is 425188711. The next prime is 425188801. The reversal of 425188764 is 467881524.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 18486457 + ... + 18486479.

It is an arithmetic number, because the mean of its divisors is an integer number (2853760).

Almost surely, 2^425188764 is an apocalyptic number.

425188764 is a gapful number since it is divisible by the number (44) 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 425188764, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (821882880).

425188764 is an abundant number, since it is smaller than the sum of its proper divisors (1218576996).

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

425188764 is a wasteful number, since it uses less digits than its factorization.

425188764 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 92 (or 78 counting only the distinct ones).

The product of its digits is 430080, while the sum is 45.

The square root of 425188764 is about 20620.1058193211. The cubic root of 425188764 is about 751.9585927668.

The spelling of 425188764 in words is "four hundred twenty-five million, one hundred eighty-eight thousand, seven hundred sixty-four".