196403449 has 6 divisors (see below), whose sum is σ = 215881610. Its totient is φ = 178548480.

The previous prime is 196403447. The next prime is 196403461. The reversal of 196403449 is 944304691.

It can be written as a sum of positive squares in only one way, i.e., 149891049 + 46512400 = 12243^2 + 6820^2 .

It is not a de Polignac number, because 196403449 - 2¹ = 196403447 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (196403447) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 811464 + ... + 811705.

Almost surely, 2^196403449 is an apocalyptic number.

It is an amenable number.

196403449 is a deficient number, since it is larger than the sum of its proper divisors (19478161).

196403449 is a wasteful number, since it uses less digits than its factorization.

196403449 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1623191 (or 1623180 counting only the distinct ones).

The product of its (nonzero) digits is 93312, while the sum is 40.

The square root of 196403449 is about 14014.4014856147. The cubic root of 196403449 is about 581.2768629201.

The spelling of 196403449 in words is "one hundred ninety-six million, four hundred three thousand, four hundred forty-nine".