1208399355 has 96 divisors (see below), whose sum is σ = 2313904320. Its totient is φ = 580853760.

The previous prime is 1208399341. The next prime is 1208399377. The reversal of 1208399355 is 5539938021.

1208399355 is a `hidden beast` number, since 1 + 208 + 3 + 99 + 355 = 666.

1208399355 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 1208399355 - 2¹⁵ = 1208366587 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 1208399355.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 1850209 + ... + 1850861.

It is an arithmetic number, because the mean of its divisors is an integer number (24103170).

Almost surely, 2^1208399355 is an apocalyptic number.

1208399355 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1208399355 is a deficient number, since it is larger than the sum of its proper divisors (1105504965).

1208399355 is a wasteful number, since it uses less digits than its factorization.

1208399355 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 781 (or 778 counting only the distinct ones).

The product of its (nonzero) digits is 291600, while the sum is 45.

The square root of 1208399355 is about 34762.0389937069. The cubic root of 1208399355 is about 1065.1321531439.

The spelling of 1208399355 in words is "one billion, two hundred eight million, three hundred ninety-nine thousand, three hundred fifty-five".