420445140332534 has 8 divisors (see below), whose sum is σ = 630677159046000. Its totient is φ = 210219420650536.

The previous prime is 420445140332519. The next prime is 420445140332597. The reversal of 420445140332534 is 435233041544024.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×420445140332534² (a number of 30 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1574590994 + ... + 1574857989.

It is an arithmetic number, because the mean of its divisors is an integer number (78834644880750).

Almost surely, 2^{420445140332534} is an apocalyptic number.

420445140332534 is a deficient number, since it is larger than the sum of its proper divisors (210232018713466).

420445140332534 is a wasteful number, since it uses less digits than its factorization.

420445140332534 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3149515734.

The product of its (nonzero) digits is 2764800, while the sum is 44.

Adding to 420445140332534 its reverse (435233041544024), we get a palindrome (855678181876558).

The spelling of 420445140332534 in words is "four hundred twenty trillion, four hundred forty-five billion, one hundred forty million, three hundred thirty-two thousand, five hundred thirty-four".