4321020400 has 60 divisors (see below), whose sum is σ = 10551495544. Its totient is φ = 1700064000.

The previous prime is 4321020391. The next prime is 4321020443. The reversal of 4321020400 is 40201234.

It is a Harshad number since it is a multiple of its sum of digits (16).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 64146 + ... + 112945.

Almost surely, 2^4321020400 is an apocalyptic number.

4321020400 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

4321020400 is an abundant number, since it is smaller than the sum of its proper divisors (6230475144).

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

4321020400 is a wasteful number, since it uses less digits than its factorization.

4321020400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 177170 (or 177159 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 16.

The square root of 4321020400 is about 65734.4688880955. The cubic root of 4321020400 is about 1628.7787909609.

Adding to 4321020400 its reverse (40201234), we get a palindrome (4361221634).

The spelling of 4321020400 in words is "four billion, three hundred twenty-one million, twenty thousand, four hundred".