421328040742 has 16 divisors (see below), whose sum is σ = 723944727072. Its totient is φ = 180152138880.

The previous prime is 421328040719. The next prime is 421328040767. The reversal of 421328040742 is 247040823124.

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, 34745509 + ... + 34757632.

It is an arithmetic number, because the mean of its divisors is an integer number (45246545442).

Almost surely, 2^421328040742 is an apocalyptic number.

421328040742 is a deficient number, since it is larger than the sum of its proper divisors (302616686330).

421328040742 is a wasteful number, since it uses less digits than its factorization.

421328040742 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 69503583.

The product of its (nonzero) digits is 86016, while the sum is 37.

Adding to 421328040742 its reverse (247040823124), we get a palindrome (668368863866).

The spelling of 421328040742 in words is "four hundred twenty-one billion, three hundred twenty-eight million, forty thousand, seven hundred forty-two".