420608526 has 64 divisors (see below), whose sum is σ = 985255488. Its totient is φ = 118499328.

The previous prime is 420608497. The next prime is 420608533. The reversal of 420608526 is 625806024.

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, 44776 + ... + 53348.

It is an arithmetic number, because the mean of its divisors is an integer number (15394617).

Almost surely, 2^420608526 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 420608526, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (492627744).

420608526 is an abundant number, since it is smaller than the sum of its proper divisors (564646962).

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

420608526 is a wasteful number, since it uses less digits than its factorization.

420608526 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8645.

The product of its (nonzero) digits is 23040, while the sum is 33.

The square root of 420608526 is about 20508.7426723337. The cubic root of 420608526 is about 749.2487446273.

The spelling of 420608526 in words is "four hundred twenty million, six hundred eight thousand, five hundred twenty-six".