401213913 has 16 divisors (see below), whose sum is σ = 543377856. Its totient is φ = 263278080.

The previous prime is 401213833. The next prime is 401213921. The reversal of 401213913 is 319312104.

It is not a de Polignac number, because 401213913 - 2⁹ = 401213401 is a prime.

It is not an unprimeable number, because it can be changed into a prime (401213933) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 126993 + ... + 130113.

It is an arithmetic number, because the mean of its divisors is an integer number (33961116).

Almost surely, 2^401213913 is an apocalyptic number.

It is an amenable number.

401213913 is a deficient number, since it is larger than the sum of its proper divisors (142163943).

401213913 is a wasteful number, since it uses less digits than its factorization.

401213913 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3784.

The product of its (nonzero) digits is 648, while the sum is 24.

The square root of 401213913 is about 20030.3248351094. The cubic root of 401213913 is about 737.5508959608.

The spelling of 401213913 in words is "four hundred one million, two hundred thirteen thousand, nine hundred thirteen".