420420140400 has 120 divisors (see below), whose sum is σ = 1450341738160. Its totient is φ = 103488030720.

The previous prime is 420420140383. The next prime is 420420140401. The reversal of 420420140400 is 4041024024.

It is a tau number, because it is divible by the number of its divisors (120).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (420420140401) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 13459405 + ... + 13490604.

Almost surely, 2^420420140400 is an apocalyptic number.

420420140400 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

420420140400 is an abundant number, since it is smaller than the sum of its proper divisors (1029921597760).

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

420420140400 is a wasteful number, since it uses less digits than its factorization.

420420140400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26950043 (or 26950032 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 21.

Adding to 420420140400 its reverse (4041024024), we get a palindrome (424461164424).

The spelling of 420420140400 in words is "four hundred twenty billion, four hundred twenty million, one hundred forty thousand, four hundred".