401203315244240 has 20 divisors (see below), whose sum is σ = 932797707943044. Its totient is φ = 160481326097664.

The previous prime is 401203315244191. The next prime is 401203315244327. The reversal of 401203315244240 is 42442513302104.

It can be written as a sum of positive squares in 2 ways, for example, as 94600833879616 + 306602481364624 = 9726296^2 + 17510068^2 .

It is a tau number, because it is divible by the number of its divisors (20).

It is a super-3 number, since 3×401203315244240³ (a number of 45 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 401203315244240.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2507520720197 + ... + 2507520720356.

Almost surely, 2^{401203315244240} is an apocalyptic number.

401203315244240 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

401203315244240 is an abundant number, since it is smaller than the sum of its proper divisors (531594392698804).

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

401203315244240 is a wasteful number, since it uses less digits than its factorization.

401203315244240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5015041440566 (or 5015041440560 counting only the distinct ones).

The product of its (nonzero) digits is 92160, while the sum is 35.

Adding to 401203315244240 its reverse (42442513302104), we get a palindrome (443645828546344).

The spelling of 401203315244240 in words is "four hundred one trillion, two hundred three billion, three hundred fifteen million, two hundred forty-four thousand, two hundred forty".