2742940 has 12 divisors (see below), whose sum is σ = 5760216. Its totient is φ = 1097168.

The previous prime is 2742937. The next prime is 2742953. The reversal of 2742940 is 492472.

It is a junction number, because it is equal to n+sod(n) for n = 2742899 and 2742908.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 68554 + ... + 68593.

It is an arithmetic number, because the mean of its divisors is an integer number (480018).

2^2742940 is an apocalyptic number.

2742940 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2742940 is an abundant number, since it is smaller than the sum of its proper divisors (3017276).

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

2742940 is a wasteful number, since it uses less digits than its factorization.

2742940 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 137156 (or 137154 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 28.

The square root of 2742940 is about 1656.1823571093. The cubic root of 2742940 is about 139.9819704673.

The spelling of 2742940 in words is "two million, seven hundred forty-two thousand, nine hundred forty".