308401255 has 8 divisors (see below), whose sum is σ = 389559600. Its totient is φ = 233735616.

The previous prime is 308401241. The next prime is 308401259. The reversal of 308401255 is 552104803.

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

It is a cyclic number.

It is not a de Polignac number, because 308401255 - 2⁷ = 308401127 is a prime.

It is a super-2 number, since 2×308401255² = 190222668171150050, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (308401259) 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, 1623070 + ... + 1623259.

It is an arithmetic number, because the mean of its divisors is an integer number (48694950).

Almost surely, 2^308401255 is an apocalyptic number.

308401255 is a deficient number, since it is larger than the sum of its proper divisors (81158345).

308401255 is a wasteful number, since it uses less digits than its factorization.

308401255 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3246353.

The product of its (nonzero) digits is 4800, while the sum is 28.

The square root of 308401255 is about 17561.3568667116. The cubic root of 308401255 is about 675.6244828892.

The spelling of 308401255 in words is "three hundred eight million, four hundred one thousand, two hundred fifty-five".