1945900908 has 60 divisors (see below), whose sum is σ = 5813686032. Its totient is φ = 555971040.

The previous prime is 1945900897. The next prime is 1945900919. The reversal of 1945900908 is 8090095491.

It is an interprime number because it is at equal distance from previous prime (1945900897) and next prime (1945900919).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 426723 + ... + 431258.

Almost surely, 2^1945900908 is an apocalyptic number.

1945900908 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

1945900908 is an abundant number, since it is smaller than the sum of its proper divisors (3867785124).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1945900908 is a wasteful number, since it uses less digits than its factorization.

1945900908 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 858004 (or 857993 counting only the distinct ones).

The product of its (nonzero) digits is 116640, while the sum is 45.

The square root of 1945900908 is about 44112.3668374301. The cubic root of 1945900908 is about 1248.4569563702.

The spelling of 1945900908 in words is "one billion, nine hundred forty-five million, nine hundred thousand, nine hundred eight".