2742640378 has 8 divisors (see below), whose sum is σ = 4114903968. Its totient is φ = 1371005724.

The previous prime is 2742640357. The next prime is 2742640387. The reversal of 2742640378 is 8730462472.

It is a sphenic number, since it is the product of 3 distinct primes.

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, 146176 + ... + 163867.

It is an arithmetic number, because the mean of its divisors is an integer number (514362996).

Almost surely, 2^2742640378 is an apocalyptic number.

2742640378 is a deficient number, since it is larger than the sum of its proper divisors (1372263590).

2742640378 is a wasteful number, since it uses less digits than its factorization.

2742640378 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 314468.

The product of its (nonzero) digits is 451584, while the sum is 43.

The square root of 2742640378 is about 52370.2241545709. The cubic root of 2742640378 is about 1399.7687335678.

The spelling of 2742640378 in words is "two billion, seven hundred forty-two million, six hundred forty thousand, three hundred seventy-eight".