401213000 has 64 divisors (see below), whose sum is σ = 942055920. Its totient is φ = 159936000.

The previous prime is 401212993. The next prime is 401213023. The reversal of 401213000 is 312104.

It is a happy number.

It can be written as a sum of positive squares in 8 ways, for example, as 19166884 + 382046116 = 4378^2 + 19546^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 420524 + ... + 421476.

Almost surely, 2^401213000 is an apocalyptic number.

401213000 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 401213000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (471027960).

401213000 is an abundant number, since it is smaller than the sum of its proper divisors (540842920).

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

401213000 is a wasteful number, since it uses less digits than its factorization.

401213000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1395 (or 1381 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 11.

The square root of 401213000 is about 20030.3020446522. The cubic root of 401213000 is about 737.5503365049.

Adding to 401213000 its reverse (312104), we get a palindrome (401525104).

The spelling of 401213000 in words is "four hundred one million, two hundred thirteen thousand".