401202126 has 64 divisors (see below), whose sum is σ = 982544640. Its totient is φ = 120566880.

The previous prime is 401202107. The next prime is 401202143. The reversal of 401202126 is 621202104.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 401202099 and 401202108.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 23541 + ... + 36831.

It is an arithmetic number, because the mean of its divisors is an integer number (15352260).

Almost surely, 2^401202126 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 401202126, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (491272320).

401202126 is an abundant number, since it is smaller than the sum of its proper divisors (581342514).

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

401202126 is a wasteful number, since it uses less digits than its factorization.

401202126 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13358 (or 13352 counting only the distinct ones).

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

The square root of 401202126 is about 20030.0306040705. The cubic root of 401202126 is about 737.5436732157.

The spelling of 401202126 in words is "four hundred one million, two hundred two thousand, one hundred twenty-six".