420066240 has 112 divisors (see below), whose sum is σ = 1454993280. Its totient is φ = 101831680.

The previous prime is 420066221. The next prime is 420066293. The reversal of 420066240 is 42660024.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a self number, because there is not a number n which added to its sum of digits gives 420066240.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9330 + ... + 30449.

Almost surely, 2^420066240 is an apocalyptic number.

420066240 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

420066240 is an abundant number, since it is smaller than the sum of its proper divisors (1034927040).

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

420066240 is a wasteful number, since it uses less digits than its factorization.

420066240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39810 (or 39800 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 24.

The square root of 420066240 is about 20495.5175587249. The cubic root of 420066240 is about 748.9266067243.

The spelling of 420066240 in words is "four hundred twenty million, sixty-six thousand, two hundred forty".