402041210240 has 32 divisors (see below), whose sum is σ = 961129769760. Its totient is φ = 160816483840.

The previous prime is 402041210239. The next prime is 402041210287. The reversal of 402041210240 is 42012140204.

It is a tau number, because it is divible by the number of its divisors (32).

It is a Harshad number since it is a multiple of its sum of digits (20).

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, 314094056 + ... + 314095335.

It is an arithmetic number, because the mean of its divisors is an integer number (30035305305).

Almost surely, 2^402041210240 is an apocalyptic number.

402041210240 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

402041210240 is an abundant number, since it is smaller than the sum of its proper divisors (559088559520).

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

402041210240 is an equidigital number, since it uses as much as digits as its factorization.

402041210240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 628189410 (or 628189398 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 20.

Adding to 402041210240 its reverse (42012140204), we get a palindrome (444053350444).

The spelling of 402041210240 in words is "four hundred two billion, forty-one million, two hundred ten thousand, two hundred forty".