308397398 has 8 divisors (see below), whose sum is σ = 486943320. Its totient is φ = 146082960.

The previous prime is 308397377. The next prime is 308397403. The reversal of 308397398 is 893793803.

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4057823 + ... + 4057898.

It is an arithmetic number, because the mean of its divisors is an integer number (60867915).

Almost surely, 2^308397398 is an apocalyptic number.

308397398 is a gapful number since it is divisible by the number (38) formed by its first and last digit.

308397398 is a deficient number, since it is larger than the sum of its proper divisors (178545922).

308397398 is a wasteful number, since it uses less digits than its factorization.

308397398 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8115742.

The product of its (nonzero) digits is 979776, while the sum is 50.

The square root of 308397398 is about 17561.2470513913. The cubic root of 308397398 is about 675.6216663265.

The spelling of 308397398 in words is "three hundred eight million, three hundred ninety-seven thousand, three hundred ninety-eight".