1672868949 has 16 divisors (see below), whose sum is σ = 2299387200. Its totient is φ = 1081316736.

The previous prime is 1672868909. The next prime is 1672868971. The reversal of 1672868949 is 9498682761.

It is not a de Polignac number, because 1672868949 - 2¹¹ = 1672866901 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1672868892 and 1672868901.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1672868909) 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, 51814 + ... + 77655.

It is an arithmetic number, because the mean of its divisors is an integer number (143711700).

Almost surely, 2^1672868949 is an apocalyptic number.

It is an amenable number.

1672868949 is a deficient number, since it is larger than the sum of its proper divisors (626518251).

1672868949 is a wasteful number, since it uses less digits than its factorization.

1672868949 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 129604.

The product of its digits is 10450944, while the sum is 60.

The square root of 1672868949 is about 40900.7206415731. The cubic root of 1672868949 is about 1187.1000046572.

The spelling of 1672868949 in words is "one billion, six hundred seventy-two million, eight hundred sixty-eight thousand, nine hundred forty-nine".