401212884 has 24 divisors (see below), whose sum is σ = 950137888. Its totient is φ = 131741280.

The previous prime is 401212859. The next prime is 401212901. The reversal of 401212884 is 488212104.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 248707 + ... + 250314.

Almost surely, 2^401212884 is an apocalyptic number.

It is an amenable number.

401212884 is an abundant number, since it is smaller than the sum of its proper divisors (548925004).

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

401212884 is a wasteful number, since it uses less digits than its factorization.

401212884 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 499095 (or 499093 counting only the distinct ones).

The product of its (nonzero) digits is 4096, while the sum is 30.

The square root of 401212884 is about 20030.2991490392. The cubic root of 401212884 is about 737.5502654240.

Adding to 401212884 its reverse (488212104), we get a palindrome (889424988).

The spelling of 401212884 in words is "four hundred one million, two hundred twelve thousand, eight hundred eighty-four".