421322002140400 has 30 divisors (see below), whose sum is σ = 1012226110143272. Its totient is φ = 168528800856000.

The previous prime is 421322002140367. The next prime is 421322002140433. The reversal of 421322002140400 is 4041200223124.

It is an interprime number because it is at equal distance from previous prime (421322002140367) and next prime (421322002140433).

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 526652502276 + ... + 526652503075.

Almost surely, 2^{421322002140400} is an apocalyptic number.

421322002140400 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

421322002140400 is an abundant number, since it is smaller than the sum of its proper divisors (590904108002872).

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

421322002140400 is a wasteful number, since it uses less digits than its factorization.

421322002140400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1053305005369 (or 1053305005358 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 25.

Adding to 421322002140400 its reverse (4041200223124), we get a palindrome (425363202363524).

The spelling of 421322002140400 in words is "four hundred twenty-one trillion, three hundred twenty-two billion, two million, one hundred forty thousand, four hundred".