420324143854 has 32 divisors (see below), whose sum is σ = 638593781760. Its totient is φ = 207475134048.

The previous prime is 420324143849. The next prime is 420324143873. The reversal of 420324143854 is 458341423024.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 72379419 + ... + 72385225.

It is an arithmetic number, because the mean of its divisors is an integer number (19956055680).

Almost surely, 2^420324143854 is an apocalyptic number.

420324143854 is a deficient number, since it is larger than the sum of its proper divisors (218269637906).

420324143854 is a wasteful number, since it uses less digits than its factorization.

420324143854 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7072.

The product of its (nonzero) digits is 368640, while the sum is 40.

Adding to 420324143854 its reverse (458341423024), we get a palindrome (878665566878).

The spelling of 420324143854 in words is "four hundred twenty billion, three hundred twenty-four million, one hundred forty-three thousand, eight hundred fifty-four".