1908485864 has 16 divisors (see below), whose sum is σ = 3615303300. Its totient is φ = 944404992.

The previous prime is 1908485861. The next prime is 1908485897. The reversal of 1908485864 is 4685848091.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 1906020964 + 2464900 = 43658^2 + 1570^2 .

It is not an unprimeable number, because it can be changed into a prime (1908485861) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1228919 + ... + 1230470.

Almost surely, 2^1908485864 is an apocalyptic number.

It is an amenable number.

1908485864 is a deficient number, since it is larger than the sum of its proper divisors (1706817436).

1908485864 is a wasteful number, since it uses less digits than its factorization.

1908485864 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2459492 (or 2459488 counting only the distinct ones).

The product of its (nonzero) digits is 2211840, while the sum is 53.

The square root of 1908485864 is about 43686.2205277591. The cubic root of 1908485864 is about 1240.4034985859.

The spelling of 1908485864 in words is "one billion, nine hundred eight million, four hundred eighty-five thousand, eight hundred sixty-four".