14001020 has 48 divisors (see below), whose sum is σ = 33481728. Its totient is φ = 4868160.

The previous prime is 14001019. The next prime is 14001023. The reversal of 14001020 is 2010041.

It is a super-2 number, since 2×14001020² = 392057122080800, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 14000989 and 14001007.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (14001023) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3677 + ... + 6443.

It is an arithmetic number, because the mean of its divisors is an integer number (697536).

Almost surely, 2^14001020 is an apocalyptic number.

14001020 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 14001020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16740864).

14001020 is an abundant number, since it is smaller than the sum of its proper divisors (19480708).

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

14001020 is a wasteful number, since it uses less digits than its factorization.

14001020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2810 (or 2808 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 8.

The square root of 14001020 is about 3741.7936875247. The cubic root of 14001020 is about 241.0200794780.

Adding to 14001020 its reverse (2010041), we get a palindrome (16011061).

The spelling of 14001020 in words is "fourteen million, one thousand, twenty".