890420234284 has 72 divisors (see below), whose sum is σ = 1871425167360. Its totient is φ = 369237204000.

The previous prime is 890420234233. The next prime is 890420234339. The reversal of 890420234284 is 482432024098.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 64708597 + ... + 64722355.

Almost surely, 2^890420234284 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 890420234284, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (935712583680).

890420234284 is an abundant number, since it is smaller than the sum of its proper divisors (981004933076).

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

890420234284 is a wasteful number, since it uses less digits than its factorization.

890420234284 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24459 (or 24450 counting only the distinct ones).

The product of its (nonzero) digits is 884736, while the sum is 46.

The spelling of 890420234284 in words is "eight hundred ninety billion, four hundred twenty million, two hundred thirty-four thousand, two hundred eighty-four".