425071872 has 162 divisors, whose sum is σ = 1270234602. Its totient is φ = 136660992.

The previous prime is 425071853. The next prime is 425071891. The reversal of 425071872 is 278170524.

It is an interprime number because it is at equal distance from previous prime (425071853) and next prime (425071891).

It can be written as a sum of positive squares in only one way, i.e., 392990976 + 32080896 = 19824^2 + 5664^2 .

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 7204579 + ... + 7204637.

Almost surely, 2^425071872 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 425071872, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (635117301).

425071872 is an abundant number, since it is smaller than the sum of its proper divisors (845162730).

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

425071872 is an equidigital number, since it uses as much as digits as its factorization.

425071872 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 193 (or 117 counting only the distinct ones).

The product of its (nonzero) digits is 31360, while the sum is 36.

The square root of 425071872 is about 20617.2712064424. The cubic root of 425071872 is about 751.8896774933.

The spelling of 425071872 in words is "four hundred twenty-five million, seventy-one thousand, eight hundred seventy-two".