420061236 has 96 divisors (see below), whose sum is σ = 1197600768. Its totient is φ = 111978240.

The previous prime is 420061217. The next prime is 420061237. The reversal of 420061236 is 632160024.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (420061237) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 76561 + ... + 81863.

It is an arithmetic number, because the mean of its divisors is an integer number (12475008).

Almost surely, 2^420061236 is an apocalyptic number.

420061236 is a gapful number since it is divisible by the number (46) 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 420061236, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (598800384).

420061236 is an abundant number, since it is smaller than the sum of its proper divisors (777539532).

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

420061236 is a wasteful number, since it uses less digits than its factorization.

420061236 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5381 (or 5379 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 24.

The square root of 420061236 is about 20495.3954828883. The cubic root of 420061236 is about 748.9236328730.

The spelling of 420061236 in words is "four hundred twenty million, sixty-one thousand, two hundred thirty-six".