47321400 has 192 divisors, whose sum is σ = 176774400. Its totient is φ = 10229760.

The previous prime is 47321399. The next prime is 47321401. The reversal of 47321400 is 412374.

It is an interprime number because it is at equal distance from previous prime (47321399) and next prime (47321401).

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47321401) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 79504 + ... + 80096.

It is an arithmetic number, because the mean of its divisors is an integer number (920700).

Almost surely, 2^47321400 is an apocalyptic number.

47321400 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 47321400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (88387200).

47321400 is an abundant number, since it is smaller than the sum of its proper divisors (129453000).

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

47321400 is a wasteful number, since it uses less digits than its factorization.

47321400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 638 (or 629 counting only the distinct ones).

The product of its (nonzero) digits is 672, while the sum is 21.

The square root of 47321400 is about 6879.0551676811. The cubic root of 47321400 is about 361.7033476167.

Adding to 47321400 its reverse (412374), we get a palindrome (47733774).

The spelling of 47321400 in words is "forty-seven million, three hundred twenty-one thousand, four hundred".