401213242 has 8 divisors (see below), whose sum is σ = 627986016. Its totient is φ = 191884572.

The previous prime is 401213221. The next prime is 401213279. The reversal of 401213242 is 242312104.

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4360968 + ... + 4361059.

It is an arithmetic number, because the mean of its divisors is an integer number (78498252).

Almost surely, 2^401213242 is an apocalyptic number.

401213242 is a deficient number, since it is larger than the sum of its proper divisors (226772774).

401213242 is a wasteful number, since it uses less digits than its factorization.

401213242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8722052.

The product of its (nonzero) digits is 384, while the sum is 19.

The square root of 401213242 is about 20030.3080854988. The cubic root of 401213242 is about 737.5504847945.

Adding to 401213242 its reverse (242312104), we get a palindrome (643525346).

The spelling of 401213242 in words is "four hundred one million, two hundred thirteen thousand, two hundred forty-two".