1995730506 has 72 divisors (see below), whose sum is σ = 5487359904. Its totient is φ = 518369040.

The previous prime is 1995730481. The next prime is 1995730507. The reversal of 1995730506 is 6050375991.

1995730506 is a `hidden beast` number, since 1 + 99 + 57 + 3 + 0 + 506 = 666.

It is not an unprimeable number, because it can be changed into a prime (1995730507) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 93150 + ... + 112553.

It is an arithmetic number, because the mean of its divisors is an integer number (76213332).

Almost surely, 2^1995730506 is an apocalyptic number.

1995730506 is an abundant number, since it is smaller than the sum of its proper divisors (3491629398).

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

1995730506 is a wasteful number, since it uses less digits than its factorization.

1995730506 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 205736 (or 205726 counting only the distinct ones).

The product of its (nonzero) digits is 255150, while the sum is 45.

The square root of 1995730506 is about 44673.5996534866. The cubic root of 1995730506 is about 1259.0238736164.

The spelling of 1995730506 in words is "one billion, nine hundred ninety-five million, seven hundred thirty thousand, five hundred six".