1939265130 has 64 divisors (see below), whose sum is σ = 5101595136. Its totient is φ = 467880000.

The previous prime is 1939265113. The next prime is 1939265131. The reversal of 1939265130 is 315629391.

It is a Smith number, since the sum of its digits (39) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1939265131) 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, 55705 + ... + 83555.

It is an arithmetic number, because the mean of its divisors is an integer number (79712424).

Almost surely, 2^1939265130 is an apocalyptic number.

1939265130 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 1939265130, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2550797568).

1939265130 is an abundant number, since it is smaller than the sum of its proper divisors (3162330006).

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

1939265130 is a wasteful number, since it uses less digits than its factorization.

1939265130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28083.

The product of its (nonzero) digits is 43740, while the sum is 39.

The square root of 1939265130 is about 44037.0881189935. The cubic root of 1939265130 is about 1247.0362060275.

The spelling of 1939265130 in words is "one billion, nine hundred thirty-nine million, two hundred sixty-five thousand, one hundred thirty".