401201406 has 12 divisors (see below), whose sum is σ = 869269752. Its totient is φ = 133733796.

The previous prime is 401201401. The next prime is 401201407. The reversal of 401201406 is 604102104.

It is a Harshad number since it is a multiple of its sum of digits (18), and also a Moran number because the ratio is a prime number: 22288967 = 401201406 / (4 + 0 + 1 + 2 + 0 + 1 + 4 + 0 + 6).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (401201401) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 11144466 + ... + 11144501.

It is an arithmetic number, because the mean of its divisors is an integer number (72439146).

Almost surely, 2^401201406 is an apocalyptic number.

401201406 is an abundant number, since it is smaller than the sum of its proper divisors (468068346).

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

401201406 is a wasteful number, since it uses less digits than its factorization.

401201406 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22288975 (or 22288972 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

The square root of 401201406 is about 20030.0126310494. The cubic root of 401201406 is about 737.5432320152.

The spelling of 401201406 in words is "four hundred one million, two hundred one thousand, four hundred six".