1939465986 has 16 divisors (see below), whose sum is σ = 3881924544. Its totient is φ = 645989904.

The previous prime is 1939465967. The next prime is 1939465987. The reversal of 1939465986 is 6895649391.

1939465986 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (1939465987) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 116221 + ... + 131856.

It is an arithmetic number, because the mean of its divisors is an integer number (242620284).

Almost surely, 2^1939465986 is an apocalyptic number.

1939465986 is an abundant number, since it is smaller than the sum of its proper divisors (1942458558).

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

1939465986 is a wasteful number, since it uses less digits than its factorization.

1939465986 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 249385.

The product of its digits is 12597120, while the sum is 60.

The square root of 1939465986 is about 44039.3685922040. The cubic root of 1939465986 is about 1247.0792577405.

The spelling of 1939465986 in words is "one billion, nine hundred thirty-nine million, four hundred sixty-five thousand, nine hundred eighty-six".