1670240139 has 16 divisors (see below), whose sum is σ = 2260836864. Its totient is φ = 1096603200.

The previous prime is 1670240129. The next prime is 1670240141. The reversal of 1670240139 is 9310420761.

It is not a de Polignac number, because 1670240139 - 2⁵ = 1670240107 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1670240129) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 216234 + ... + 223824.

It is an arithmetic number, because the mean of its divisors is an integer number (141302304).

Almost surely, 2^1670240139 is an apocalyptic number.

1670240139 is a deficient number, since it is larger than the sum of its proper divisors (590596725).

1670240139 is a wasteful number, since it uses less digits than its factorization.

1670240139 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8698.

The product of its (nonzero) digits is 9072, while the sum is 33.

The square root of 1670240139 is about 40868.5715311901. The cubic root of 1670240139 is about 1186.4778605984.

The spelling of 1670240139 in words is "one billion, six hundred seventy million, two hundred forty thousand, one hundred thirty-nine".