1995407064 has 48 divisors (see below), whose sum is σ = 6176261520. Its totient is φ = 570116160.

The previous prime is 1995407041. The next prime is 1995407069. The reversal of 1995407064 is 4607045991.

It is a super-2 number, since 2×1995407064² = 7963298702122200192, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1995407069) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1979067 + ... + 1980074.

It is an arithmetic number, because the mean of its divisors is an integer number (128672115).

Almost surely, 2^1995407064 is an apocalyptic number.

1995407064 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

1995407064 is an abundant number, since it is smaller than the sum of its proper divisors (4180854456).

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

1995407064 is a wasteful number, since it uses less digits than its factorization.

1995407064 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3959160 (or 3959153 counting only the distinct ones).

The product of its (nonzero) digits is 272160, while the sum is 45.

The square root of 1995407064 is about 44669.9794492901. The cubic root of 1995407064 is about 1258.9558545461.

The spelling of 1995407064 in words is "one billion, nine hundred ninety-five million, four hundred seven thousand, sixty-four".