308230436 has 6 divisors (see below), whose sum is σ = 539403270. Its totient is φ = 154115216.

The previous prime is 308230423. The next prime is 308230441. The reversal of 308230436 is 634032803.

It can be written as a sum of positive squares in only one way, i.e., 306040036 + 2190400 = 17494^2 + 1480^2 .

It is a junction number, because it is equal to n+sod(n) for n = 308230399 and 308230408.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 38528801 + ... + 38528808.

It is an arithmetic number, because the mean of its divisors is an integer number (89900545).

Almost surely, 2^308230436 is an apocalyptic number.

It is an amenable number.

308230436 is a deficient number, since it is larger than the sum of its proper divisors (231172834).

308230436 is a wasteful number, since it uses less digits than its factorization.

308230436 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77057613 (or 77057611 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 29.

The square root of 308230436 is about 17556.4927021316. The cubic root of 308230436 is about 675.4997203047.

The spelling of 308230436 in words is "three hundred eight million, two hundred thirty thousand, four hundred thirty-six".