429238821620 has 24 divisors (see below), whose sum is σ = 1030173172224. Its totient is φ = 147167595936.

The previous prime is 429238821617. The next prime is 429238821629. The reversal of 429238821620 is 26128832924.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (429238821629) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1532995652 + ... + 1532995931.

It is an arithmetic number, because the mean of its divisors is an integer number (42923882176).

Almost surely, 2^429238821620 is an apocalyptic number.

It is an amenable number.

429238821620 is an abundant number, since it is smaller than the sum of its proper divisors (600934350604).

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

429238821620 is a wasteful number, since it uses less digits than its factorization.

429238821620 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3065991599 (or 3065991597 counting only the distinct ones).

The product of its (nonzero) digits is 663552, while the sum is 47.

The spelling of 429238821620 in words is "four hundred twenty-nine billion, two hundred thirty-eight million, eight hundred twenty-one thousand, six hundred twenty".