420454103520 has 96 divisors (see below), whose sum is σ = 1444833210240. Its totient is φ = 101928266240.

The previous prime is 420454103513. The next prime is 420454103543. The reversal of 420454103520 is 25301454024.

It is a tau number, because it is divible by the number of its divisors (96).

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 39810450 + ... + 39821009.

It is an arithmetic number, because the mean of its divisors is an integer number (15050345940).

Almost surely, 2^420454103520 is an apocalyptic number.

420454103520 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

420454103520 is an abundant number, since it is smaller than the sum of its proper divisors (1024379106720).

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

420454103520 is a wasteful number, since it uses less digits than its factorization.

420454103520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 79631488 (or 79631480 counting only the distinct ones).

The product of its (nonzero) digits is 19200, while the sum is 30.

Adding to 420454103520 its reverse (25301454024), we get a palindrome (445755557544).

The spelling of 420454103520 in words is "four hundred twenty billion, four hundred fifty-four million, one hundred three thousand, five hundred twenty".