2742020 has 24 divisors (see below), whose sum is σ = 5842368. Its totient is φ = 1080800.

The previous prime is 2742017. The next prime is 2742029. The reversal of 2742020 is 202472.

It is a self number, because there is not a number n which added to its sum of digits gives 2742020.

It is not an unprimeable number, because it can be changed into a prime (2742029) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 455 + ... + 2385.

It is an arithmetic number, because the mean of its divisors is an integer number (243432).

2^2742020 is an apocalyptic number.

2742020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2742020 is an abundant number, since it is smaller than the sum of its proper divisors (3100348).

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

2742020 is a wasteful number, since it uses less digits than its factorization.

2742020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2011 (or 2009 counting only the distinct ones).

The product of its (nonzero) digits is 224, while the sum is 17.

The square root of 2742020 is about 1655.9045866233. The cubic root of 2742020 is about 139.9663184281.

Multiplying 2742020 by its sum of digits (17), we get a triangular number (46614340 = T₉₆₅₅).

Adding to 2742020 its reverse (202472), we get a palindrome (2944492).

The spelling of 2742020 in words is "two million, seven hundred forty-two thousand, twenty".