420758690349 has 32 divisors (see below), whose sum is σ = 613886459904. Its totient is φ = 255192272640.

The previous prime is 420758690311. The next prime is 420758690377. The reversal of 420758690349 is 943096857024.

420758690349 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 420758690349 - 2¹² = 420758686253 is a prime.

It is a Smith number, since the sum of its digits (57) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (420758690449) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1210212 + ... + 1518594.

It is an arithmetic number, because the mean of its divisors is an integer number (19183951872).

Almost surely, 2^420758690349 is an apocalyptic number.

It is an amenable number.

420758690349 is a deficient number, since it is larger than the sum of its proper divisors (193127769555).

420758690349 is a wasteful number, since it uses less digits than its factorization.

420758690349 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 309297.

The product of its (nonzero) digits is 13063680, while the sum is 57.

The spelling of 420758690349 in words is "four hundred twenty billion, seven hundred fifty-eight million, six hundred ninety thousand, three hundred forty-nine".