1880745399 has 72 divisors (see below), whose sum is σ = 3127833072. Its totient is φ = 1128142080.

The previous prime is 1880745367. The next prime is 1880745437. The reversal of 1880745399 is 9935470881.

1880745399 is a `hidden beast` number, since 188 + 0 + 7 + 453 + 9 + 9 = 666.

It is not a de Polignac number, because 1880745399 - 2⁵ = 1880745367 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1880740399) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 1683189 + ... + 1684305.

It is an arithmetic number, because the mean of its divisors is an integer number (43442126).

Almost surely, 2^1880745399 is an apocalyptic number.

1880745399 is a deficient number, since it is larger than the sum of its proper divisors (1247087673).

1880745399 is a wasteful number, since it uses less digits than its factorization.

1880745399 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1199 (or 1174 counting only the distinct ones).

The product of its (nonzero) digits is 2177280, while the sum is 54.

The square root of 1880745399 is about 43367.5615985036. The cubic root of 1880745399 is about 1234.3642526599.

The spelling of 1880745399 in words is "one billion, eight hundred eighty million, seven hundred forty-five thousand, three hundred ninety-nine".