2169420 has 96 divisors (see below), whose sum is σ = 7015680. Its totient is φ = 495360.

The previous prime is 2169397. The next prime is 2169443. The reversal of 2169420 is 249612.

It is an interprime number because it is at equal distance from previous prime (2169397) and next prime (2169443).

It is a nialpdrome in base 12.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 12454 + ... + 12626.

It is an arithmetic number, because the mean of its divisors is an integer number (73080).

2^2169420 is an apocalyptic number.

2169420 is a gapful number since it is divisible by the number (20) 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 2169420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3507840).

2169420 is an abundant number, since it is smaller than the sum of its proper divisors (4846260).

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

2169420 is a wasteful number, since it uses less digits than its factorization.

2169420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 215 (or 213 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 24.

The square root of 2169420 is about 1472.8951082816. The cubic root of 2169420 is about 129.4537234710.

The spelling of 2169420 in words is "two million, one hundred sixty-nine thousand, four hundred twenty".