401203133440 has 88 divisors (see below), whose sum is σ = 1019030367312. Its totient is φ = 151041146880.

The previous prime is 401203133399. The next prime is 401203133497. The reversal of 401203133440 is 44331302104.

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, 2217666 + ... + 2391745.

Almost surely, 2^401203133440 is an apocalyptic number.

401203133440 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

401203133440 is an abundant number, since it is smaller than the sum of its proper divisors (617827233872).

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

401203133440 is a wasteful number, since it uses less digits than its factorization.

401203133440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4609453 (or 4609435 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 25.

Adding to 401203133440 its reverse (44331302104), we get a palindrome (445534435544).

The spelling of 401203133440 in words is "four hundred one billion, two hundred three million, one hundred thirty-three thousand, four hundred forty".