1649374107 has 4 divisors (see below), whose sum is σ = 2199165480. Its totient is φ = 1099582736.

The previous prime is 1649374093. The next prime is 1649374109. The reversal of 1649374107 is 7014739461.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1649374107 - 2¹⁹ = 1648849819 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1649374109) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 274895682 + ... + 274895687.

It is an arithmetic number, because the mean of its divisors is an integer number (549791370).

Almost surely, 2^1649374107 is an apocalyptic number.

1649374107 is a deficient number, since it is larger than the sum of its proper divisors (549791373).

1649374107 is an equidigital number, since it uses as much as digits as its factorization.

1649374107 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 549791372.

The product of its (nonzero) digits is 127008, while the sum is 42.

The square root of 1649374107 is about 40612.4870821771. The cubic root of 1649374107 is about 1181.5163181729.

The spelling of 1649374107 in words is "one billion, six hundred forty-nine million, three hundred seventy-four thousand, one hundred seven".