420034880788 has 36 divisors (see below), whose sum is σ = 781213376860. Its totient is φ = 197569815552.

The previous prime is 420034880719. The next prime is 420034880789. The reversal of 420034880788 is 887088430024.

It can be written as a sum of positive squares in 6 ways, for example, as 52231445764 + 367803435024 = 228542^2 + 606468^2 .

It is a Smith number, since the sum of its digits (52) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (420034880789) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2385358 + ... + 2555386.

Almost surely, 2^420034880788 is an apocalyptic number.

It is an amenable number.

420034880788 is a deficient number, since it is larger than the sum of its proper divisors (361178496072).

420034880788 is a wasteful number, since it uses less digits than its factorization.

420034880788 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 172204 (or 172185 counting only the distinct ones).

The product of its (nonzero) digits is 2752512, while the sum is 52.

The spelling of 420034880788 in words is "four hundred twenty billion, thirty-four million, eight hundred eighty thousand, seven hundred eighty-eight".