421256030 has 64 divisors (see below), whose sum is σ = 889358400. Its totient is φ = 142248960.

The previous prime is 421256029. The next prime is 421256053. The reversal of 421256030 is 30652124.

It is a super-2 number, since 2×421256030² = 354913285622721800, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 421255987 and 421256005.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 68690 + ... + 74570.

It is an arithmetic number, because the mean of its divisors is an integer number (13896225).

Almost surely, 2^421256030 is an apocalyptic number.

421256030 is an abundant number, since it is smaller than the sum of its proper divisors (468102370).

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

421256030 is a wasteful number, since it uses less digits than its factorization.

421256030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5949.

The product of its (nonzero) digits is 1440, while the sum is 23.

The square root of 421256030 is about 20524.5226497475. The cubic root of 421256030 is about 749.6330234298.

The spelling of 421256030 in words is "four hundred twenty-one million, two hundred fifty-six thousand, thirty".