401236080 has 160 divisors (see below), whose sum is σ = 1428860928. Its totient is φ = 91238400.

The previous prime is 401236067. The next prime is 401236109. The reversal of 401236080 is 80632104.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a self number, because there is not a number n which added to its sum of digits gives 401236080.

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, 404385 + ... + 405375.

Almost surely, 2^401236080 is an apocalyptic number.

401236080 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 401236080, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (714430464).

401236080 is an abundant number, since it is smaller than the sum of its proper divisors (1027624848).

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

401236080 is a wasteful number, since it uses less digits than its factorization.

401236080 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1255 (or 1249 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 24.

The square root of 401236080 is about 20030.8781634755. The cubic root of 401236080 is about 737.5644788976.

Adding to 401236080 its reverse (80632104), we get a palindrome (481868184).

The spelling of 401236080 in words is "four hundred one million, two hundred thirty-six thousand, eighty".