420354111504340 has 96 divisors (see below), whose sum is σ = 994529549744640. Its totient is φ = 148077867480576.

The previous prime is 420354111504319. The next prime is 420354111504401. The reversal of 420354111504340 is 43405111453024.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 420354111504340.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 88025104 + ... + 92677543.

It is an arithmetic number, because the mean of its divisors is an integer number (10359682809840).

Almost surely, 2^{420354111504340} is an apocalyptic number.

It is an amenable number.

420354111504340 is an abundant number, since it is smaller than the sum of its proper divisors (574175438240300).

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

420354111504340 is a wasteful number, since it uses less digits than its factorization.

420354111504340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 180703081 (or 180703079 counting only the distinct ones).

The product of its (nonzero) digits is 115200, while the sum is 37.

Adding to 420354111504340 its reverse (43405111453024), we get a palindrome (463759222957364).

The spelling of 420354111504340 in words is "four hundred twenty trillion, three hundred fifty-four billion, one hundred eleven million, five hundred four thousand, three hundred forty".