2740374021 has 32 divisors (see below), whose sum is σ = 4569919488. Its totient is φ = 1419042240.

The previous prime is 2740374001. The next prime is 2740374037. The reversal of 2740374021 is 1204730472.

It is not a de Polignac number, because 2740374021 - 2⁵ = 2740373989 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2740374021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2740374001) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 54516 + ... + 91938.

It is an arithmetic number, because the mean of its divisors is an integer number (142809984).

Almost surely, 2^2740374021 is an apocalyptic number.

2740374021 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

2740374021 is a deficient number, since it is larger than the sum of its proper divisors (1829545467).

2740374021 is a wasteful number, since it uses less digits than its factorization.

2740374021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37761.

The product of its (nonzero) digits is 9408, while the sum is 30.

The square root of 2740374021 is about 52348.5818432553. The cubic root of 2740374021 is about 1399.3830650813.

The spelling of 2740374021 in words is "two billion, seven hundred forty million, three hundred seventy-four thousand, twenty-one".