2691420 has 48 divisors (see below), whose sum is σ = 7784448. Its totient is φ = 694080.

The previous prime is 2691401. The next prime is 2691421. The reversal of 2691420 is 241962.

It is a nialpdrome in base 12.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2691421) 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, 1137 + ... + 2583.

It is an arithmetic number, because the mean of its divisors is an integer number (162176).

2^2691420 is an apocalyptic number.

2691420 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 2691420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3892224).

2691420 is an abundant number, since it is smaller than the sum of its proper divisors (5093028).

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

2691420 is a wasteful number, since it uses less digits than its factorization.

2691420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1490 (or 1488 counting only the distinct ones).

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

The square root of 2691420 is about 1640.5547842117. The cubic root of 2691420 is about 139.1000091134.

The spelling of 2691420 in words is "two million, six hundred ninety-one thousand, four hundred twenty".