420542423400 has 96 divisors (see below), whose sum is σ = 1422198036000. Its totient is φ = 101949676800.

The previous prime is 420542423369. The next prime is 420542423443. The reversal of 420542423400 is 4324245024.

It is a super-3 number, since 3×420542423400³ (a number of 36 digits) contains 333 as substring.

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

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 31852675 + ... + 31865874.

It is an arithmetic number, because the mean of its divisors is an integer number (14814562875).

Almost surely, 2^420542423400 is an apocalyptic number.

420542423400 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

420542423400 is an abundant number, since it is smaller than the sum of its proper divisors (1001655612600).

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

420542423400 is a wasteful number, since it uses less digits than its factorization.

420542423400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63718579 (or 63718570 counting only the distinct ones).

The product of its (nonzero) digits is 30720, while the sum is 30.

Adding to 420542423400 its reverse (4324245024), we get a palindrome (424866668424).

The spelling of 420542423400 in words is "four hundred twenty billion, five hundred forty-two million, four hundred twenty-three thousand, four hundred".