103421400 has 96 divisors (see below), whose sum is σ = 324093840. Its totient is φ = 27279360.

The previous prime is 103421399. The next prime is 103421419. The reversal of 103421400 is 4124301.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 103421400.

It is a congruent number.

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, 57312 + ... + 59088.

Almost surely, 2^103421400 is an apocalyptic number.

103421400 is a gapful number since it is divisible by the number (10) 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 103421400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (162046920).

103421400 is an abundant number, since it is smaller than the sum of its proper divisors (220672440).

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

103421400 is a wasteful number, since it uses less digits than its factorization.

103421400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1893 (or 1884 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 15.

The square root of 103421400 is about 10169.6312617518. The cubic root of 103421400 is about 469.3932112144.

Adding to 103421400 its reverse (4124301), we get a palindrome (107545701).

The spelling of 103421400 in words is "one hundred three million, four hundred twenty-one thousand, four hundred".