308223949 has 8 divisors (see below), whose sum is σ = 345332448. Its totient is φ = 272630160.

The previous prime is 308223941. The next prime is 308223961. The reversal of 308223949 is 949322803.

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

It is not a de Polignac number, because 308223949 - 2³ = 308223941 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 (308223941) 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, 378247 + ... + 379060.

It is an arithmetic number, because the mean of its divisors is an integer number (43166556).

Almost surely, 2^308223949 is an apocalyptic number.

It is an amenable number.

308223949 is a deficient number, since it is larger than the sum of its proper divisors (37108499).

308223949 is a wasteful number, since it uses less digits than its factorization.

308223949 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 757355.

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

The square root of 308223949 is about 17556.3079546925. The cubic root of 308223949 is about 675.4949814287.

The spelling of 308223949 in words is "three hundred eight million, two hundred twenty-three thousand, nine hundred forty-nine".