401212552 has 64 divisors (see below), whose sum is σ = 866194560. Its totient is φ = 172761600.

The previous prime is 401212547. The next prime is 401212561. The reversal of 401212552 is 255212104.

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, 96027 + ... + 100117.

It is an arithmetic number, because the mean of its divisors is an integer number (13534290).

Almost surely, 2^401212552 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 401212552, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (433097280).

401212552 is an abundant number, since it is smaller than the sum of its proper divisors (464982008).

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

401212552 is a wasteful number, since it uses less digits than its factorization.

401212552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4174 (or 4170 counting only the distinct ones).

The product of its (nonzero) digits is 800, while the sum is 22.

The square root of 401212552 is about 20030.2908615926. The cubic root of 401212552 is about 737.5500619852.

Adding to 401212552 its reverse (255212104), we get a palindrome (656424656).

The spelling of 401212552 in words is "four hundred one million, two hundred twelve thousand, five hundred fifty-two".