102730449 has 8 divisors (see below), whose sum is σ = 138304192. Its totient is φ = 67821840.

The previous prime is 102730417. The next prime is 102730451. The reversal of 102730449 is 944037201.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 102730449 - 2⁵ = 102730417 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (102730049) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 165922 + ... + 166539.

It is an arithmetic number, because the mean of its divisors is an integer number (17288024).

Almost surely, 2^102730449 is an apocalyptic number.

It is an amenable number.

102730449 is a deficient number, since it is larger than the sum of its proper divisors (35573743).

102730449 is a wasteful number, since it uses less digits than its factorization.

102730449 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 332567.

The product of its (nonzero) digits is 6048, while the sum is 30.

The square root of 102730449 is about 10135.6030407667. The cubic root of 102730449 is about 468.3455470895.

The spelling of 102730449 in words is "one hundred two million, seven hundred thirty thousand, four hundred forty-nine".