401213292 has 12 divisors (see below), whose sum is σ = 936164376. Its totient is φ = 133737760.

The previous prime is 401213279. The next prime is 401213297. The reversal of 401213292 is 292312104.

It is a tau number, because it is divible by the number of its divisors (12).

It is not an unprimeable number, because it can be changed into a prime (401213297) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16717209 + ... + 16717232.

It is an arithmetic number, because the mean of its divisors is an integer number (78013698).

Almost surely, 2^401213292 is an apocalyptic number.

It is an amenable number.

401213292 is an abundant number, since it is smaller than the sum of its proper divisors (534951084).

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

401213292 is a wasteful number, since it uses less digits than its factorization.

401213292 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33434448 (or 33434446 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 24.

The square root of 401213292 is about 20030.3093336074. The cubic root of 401213292 is about 737.5505154329.

Adding to 401213292 its reverse (292312104), we get a palindrome (693525396).

The spelling of 401213292 in words is "four hundred one million, two hundred thirteen thousand, two hundred ninety-two".