402020304200540 has 24 divisors (see below), whose sum is σ = 844436139494640. Its totient is φ = 160771264409088.

The previous prime is 402020304200497. The next prime is 402020304200579. The reversal of 402020304200540 is 45002403020204.

It is a happy number.

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, 2303490005 + ... + 2303664524.

It is an arithmetic number, because the mean of its divisors is an integer number (35184839145610).

Almost surely, 2^{402020304200540} is an apocalyptic number.

It is an amenable number.

402020304200540 is an abundant number, since it is smaller than the sum of its proper divisors (442415835294100).

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

402020304200540 is a wasteful number, since it uses less digits than its factorization.

402020304200540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4607158901 (or 4607158899 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 26.

Adding to 402020304200540 its reverse (45002403020204), we get a palindrome (447022707220744).

The spelling of 402020304200540 in words is "four hundred two trillion, twenty billion, three hundred four million, two hundred thousand, five hundred forty".