308284949 has 4 divisors (see below), whose sum is σ = 352325664. Its totient is φ = 264244236.

The previous prime is 308284927. The next prime is 308284967. The reversal of 308284949 is 949482803.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 949482803 = 23 ⋅41281861.

It is a cyclic number.

It is not a de Polignac number, because 308284949 - 2¹² = 308280853 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (308284909) 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, 22020347 + ... + 22020360.

It is an arithmetic number, because the mean of its divisors is an integer number (88081416).

Almost surely, 2^308284949 is an apocalyptic number.

It is an amenable number.

308284949 is a deficient number, since it is larger than the sum of its proper divisors (44040715).

308284949 is an equidigital number, since it uses as much as digits as its factorization.

308284949 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44040714.

The product of its (nonzero) digits is 497664, while the sum is 47.

The square root of 308284949 is about 17558.0451360623. The cubic root of 308284949 is about 675.5395404536.

The spelling of 308284949 in words is "three hundred eight million, two hundred eighty-four thousand, nine hundred forty-nine".