30975170040 has 128 divisors (see below), whose sum is σ = 104557824000. Its totient is φ = 8155465344.

The previous prime is 30975169963. The next prime is 30975170041. The reversal of 30975170040 is 4007157903.

It is a happy number.

It is a super-2 number, since 2×30975170040² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 30975169977 and 30975170004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30975170041) 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, 96204 + ... + 266843.

It is an arithmetic number, because the mean of its divisors is an integer number (816858000).

Almost surely, 2^30975170040 is an apocalyptic number.

30975170040 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

30975170040 is an abundant number, since it is smaller than the sum of its proper divisors (73582653960).

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

30975170040 is a wasteful number, since it uses less digits than its factorization.

30975170040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 363146 (or 363136 counting only the distinct ones).

The product of its (nonzero) digits is 26460, while the sum is 36.

The spelling of 30975170040 in words is "thirty billion, nine hundred seventy-five million, one hundred seventy thousand, forty".