1740139042 has 4 divisors (see below), whose sum is σ = 2610208566. Its totient is φ = 870069520.

The previous prime is 1740139031. The next prime is 1740139043. The reversal of 1740139042 is 2409310471.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 2409310471 = 83 ⋅29027837.

It can be written as a sum of positive squares in only one way, i.e., 1036775601 + 703363441 = 32199^2 + 26521^2 .

It is a junction number, because it is equal to n+sod(n) for n = 1740138995 and 1740139013.

It is not an unprimeable number, because it can be changed into a prime (1740139043) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 435034759 + ... + 435034762.

Almost surely, 2^1740139042 is an apocalyptic number.

1740139042 is a deficient number, since it is larger than the sum of its proper divisors (870069524).

1740139042 is an equidigital number, since it uses as much as digits as its factorization.

1740139042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 870069523.

The product of its (nonzero) digits is 6048, while the sum is 31.

The square root of 1740139042 is about 41714.9738343439. The cubic root of 1740139042 is about 1202.8034090738.

The spelling of 1740139042 in words is "one billion, seven hundred forty million, one hundred thirty-nine thousand, forty-two".