2691942 has 16 divisors (see below), whose sum is σ = 5873472. Its totient is φ = 815720.

The previous prime is 2691917. The next prime is 2691959. The reversal of 2691942 is 2491962.

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20328 + ... + 20459.

It is an arithmetic number, because the mean of its divisors is an integer number (367092).

2^2691942 is an apocalyptic number.

2691942 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

2691942 is an abundant number, since it is smaller than the sum of its proper divisors (3181530).

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

2691942 is a wasteful number, since it uses less digits than its factorization.

2691942 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40803.

The product of its digits is 7776, while the sum is 33.

The square root of 2691942 is about 1640.7138690217. The cubic root of 2691942 is about 139.1090013320.

It can be divided in two parts, 269 and 1942, that added together give a triangular number (2211 = T₆₆).

The spelling of 2691942 in words is "two million, six hundred ninety-one thousand, nine hundred forty-two".