420611490 has 96 divisors (see below), whose sum is σ = 1182557376. Its totient is φ = 103109760.

The previous prime is 420611393. The next prime is 420611491. The reversal of 420611490 is 94116024.

420611490 is a `hidden beast` number, since 4 + 2 + 0 + 611 + 49 + 0 = 666.

It is not an unprimeable number, because it can be changed into a prime (420611491) 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, 358605 + ... + 359775.

It is an arithmetic number, because the mean of its divisors is an integer number (12318306).

Almost surely, 2^420611490 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 420611490, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (591278688).

420611490 is an abundant number, since it is smaller than the sum of its proper divisors (761945886).

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

420611490 is a wasteful number, since it uses less digits than its factorization.

420611490 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1504 (or 1501 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 27.

The square root of 420611490 is about 20508.8149340716. The cubic root of 420611490 is about 749.2505045917.

The spelling of 420611490 in words is "four hundred twenty million, six hundred eleven thousand, four hundred ninety".