421036784940 has 48 divisors (see below), whose sum is σ = 1180382307552. Its totient is φ = 112135589376.

The previous prime is 421036784899. The next prime is 421036784969. The reversal of 421036784940 is 49487630124.

It is a super-3 number, since 3×421036784940³ (a number of 36 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a self number, because there is not a number n which added to its sum of digits gives 421036784940.

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, 4354489 + ... + 4450128.

It is an arithmetic number, because the mean of its divisors is an integer number (24591298074).

Almost surely, 2^421036784940 is an apocalyptic number.

It is an amenable number.

421036784940 is an abundant number, since it is smaller than the sum of its proper divisors (759345522612).

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

421036784940 is a wasteful number, since it uses less digits than its factorization.

421036784940 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8805426 (or 8805424 counting only the distinct ones).

The product of its (nonzero) digits is 1161216, while the sum is 48.

The spelling of 421036784940 in words is "four hundred twenty-one billion, thirty-six million, seven hundred eighty-four thousand, nine hundred forty".