425385720 has 192 divisors, whose sum is σ = 1459261440. Its totient is φ = 107308800.

The previous prime is 425385677. The next prime is 425385733. The reversal of 425385720 is 27583524.

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 47 ways as a sum of consecutive naturals, for example, 524115 + ... + 524925.

It is an arithmetic number, because the mean of its divisors is an integer number (7600320).

Almost surely, 2^425385720 is an apocalyptic number.

425385720 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 425385720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (729630720).

425385720 is an abundant number, since it is smaller than the sum of its proper divisors (1033875720).

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

425385720 is a wasteful number, since it uses less digits than its factorization.

425385720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 906 (or 899 counting only the distinct ones).

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

The square root of 425385720 is about 20624.8810905663. The cubic root of 425385720 is about 752.0746822993.

The spelling of 425385720 in words is "four hundred twenty-five million, three hundred eighty-five thousand, seven hundred twenty".