1938212010 has 64 divisors (see below), whose sum is σ = 5906937600. Its totient is φ = 443019456.

The previous prime is 1938211997. The next prime is 1938212011. The reversal of 1938212010 is 102128391.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (1938212011) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 510865 + ... + 514644.

It is an arithmetic number, because the mean of its divisors is an integer number (92295900).

Almost surely, 2^1938212010 is an apocalyptic number.

1938212010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1938212010 is an abundant number, since it is smaller than the sum of its proper divisors (3968725590).

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

1938212010 is a wasteful number, since it uses less digits than its factorization.

1938212010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1025532 (or 1025526 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 27.

The square root of 1938212010 is about 44025.1293013433. The cubic root of 1938212010 is about 1246.8104303722.

The spelling of 1938212010 in words is "one billion, nine hundred thirty-eight million, two hundred twelve thousand, ten".