421925130 has 96 divisors (see below), whose sum is σ = 1214785728. Its totient is φ = 100742400.

The previous prime is 421925129. The next prime is 421925131. The reversal of 421925130 is 31529124.

It is an interprime number because it is at equal distance from previous prime (421925129) and next prime (421925131).

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 421925094 and 421925103.

It is not an unprimeable number, because it can be changed into a prime (421925131) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 63150 + ... + 69510.

It is an arithmetic number, because the mean of its divisors is an integer number (12654018).

Almost surely, 2^421925130 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 421925130, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (607392864).

421925130 is an abundant number, since it is smaller than the sum of its proper divisors (792860598).

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

421925130 is a wasteful number, since it uses less digits than its factorization.

421925130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6452 (or 6449 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 27.

The square root of 421925130 is about 20540.8161960522. The cubic root of 421925130 is about 750.0297054901.

The spelling of 421925130 in words is "four hundred twenty-one million, nine hundred twenty-five thousand, one hundred thirty".