401242044 has 24 divisors (see below), whose sum is σ = 1069979008. Its totient is φ = 114640560.

The previous prime is 401242033. The next prime is 401242063. The reversal of 401242044 is 440242104.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a self number, because there is not a number n which added to its sum of digits gives 401242044.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2388262 + ... + 2388429.

Almost surely, 2^401242044 is an apocalyptic number.

It is an amenable number.

401242044 is an abundant number, since it is smaller than the sum of its proper divisors (668736964).

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

401242044 is a wasteful number, since it uses less digits than its factorization.

401242044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4776705 (or 4776703 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 21.

The square root of 401242044 is about 20031.0270330805. The cubic root of 401242044 is about 737.5681332821.

Adding to 401242044 its reverse (440242104), we get a palindrome (841484148).

It can be divided in two parts, 4012 and 42044, that added together give a triangular number (46056 = T₃₀₃).

The spelling of 401242044 in words is "four hundred one million, two hundred forty-two thousand, forty-four".