401303040 has 80 divisors (see below), whose sum is σ = 1282940208. Its totient is φ = 107012096.

The previous prime is 401303027. The next prime is 401303051. The reversal of 401303040 is 40303104.

401303040 is digitally balanced in base 6, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (80).

It is a super-2 number, since 2×401303040² = 322088259826483200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (15).

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, 18447 + ... + 33806.

Almost surely, 2^401303040 is an apocalyptic number.

401303040 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

401303040 is an abundant number, since it is smaller than the sum of its proper divisors (881637168).

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

401303040 is an equidigital number, since it uses as much as digits as its factorization.

401303040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52279 (or 52263 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 15.

The square root of 401303040 is about 20032.5495132297. The cubic root of 401303040 is about 737.6055059246.

Adding to 401303040 its reverse (40303104), we get a palindrome (441606144).

The spelling of 401303040 in words is "four hundred one million, three hundred three thousand, forty".