401504202 has 80 divisors (see below), whose sum is σ = 986686272. Its totient is φ = 121020480.

The previous prime is 401504183. The next prime is 401504209. The reversal of 401504202 is 202405104.

It is a super-2 number, since 2×401504202² = 322411248447313608, which contains 22 as substring.

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

It is not an unprimeable number, because it can be changed into a prime (401504209) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 414723 + ... + 415689.

Almost surely, 2^401504202 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 401504202, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (493343136).

401504202 is an abundant number, since it is smaller than the sum of its proper divisors (585182070).

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

401504202 is a wasteful number, since it uses less digits than its factorization.

401504202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1225 (or 1216 counting only the distinct ones).

The product of its (nonzero) digits is 320, while the sum is 18.

The square root of 401504202 is about 20037.5697628230. The cubic root of 401504202 is about 737.7287323464.

Adding to 401504202 its reverse (202405104), we get a palindrome (603909306).

The spelling of 401504202 in words is "four hundred one million, five hundred four thousand, two hundred two".