3420021400 has 24 divisors (see below), whose sum is σ = 7951550220. Its totient is φ = 1368008480.

The previous prime is 3420021389. The next prime is 3420021403. The reversal of 3420021400 is 41200243.

3420021400 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3420021403) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 8549854 + ... + 8550253.

Almost surely, 2^3420021400 is an apocalyptic number.

It is an amenable number.

3420021400 is an abundant number, since it is smaller than the sum of its proper divisors (4531528820).

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

3420021400 is a wasteful number, since it uses less digits than its factorization.

3420021400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17100123 (or 17100114 counting only the distinct ones).

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

The square root of 3420021400 is about 58480.9490347070. The cubic root of 3420021400 is about 1506.6403970759.

Adding to 3420021400 its reverse (41200243), we get a palindrome (3461221643).

The spelling of 3420021400 in words is "three billion, four hundred twenty million, twenty-one thousand, four hundred".