1985010423 has 32 divisors (see below), whose sum is σ = 3190067712. Its totient is φ = 1083033600.

The previous prime is 1985010359. The next prime is 1985010439. The reversal of 1985010423 is 3240105891.

It is not a de Polignac number, because 1985010423 - 2⁶ = 1985010359 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1985010463) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 64018 + ... + 89823.

It is an arithmetic number, because the mean of its divisors is an integer number (99689616).

Almost surely, 2^1985010423 is an apocalyptic number.

1985010423 is a deficient number, since it is larger than the sum of its proper divisors (1205057289).

1985010423 is a wasteful number, since it uses less digits than its factorization.

1985010423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 153895.

The product of its (nonzero) digits is 8640, while the sum is 33.

The square root of 1985010423 is about 44553.4557918912. The cubic root of 1985010423 is about 1256.7655394895.

The spelling of 1985010423 in words is "one billion, nine hundred eighty-five million, ten thousand, four hundred twenty-three".