30375352840 has 128 divisors (see below), whose sum is σ = 82451520000. Its totient is φ = 10055157504.

The previous prime is 30375352817. The next prime is 30375352853. The reversal of 30375352840 is 4825357303.

It is a Harshad number since it is a multiple of its sum of digits (40).

It is a junction number, because it is equal to n+sod(n) for n = 30375352793 and 30375352802.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 359709 + ... + 436051.

It is an arithmetic number, because the mean of its divisors is an integer number (644152500).

Almost surely, 2^30375352840 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 30375352840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (41225760000).

30375352840 is an abundant number, since it is smaller than the sum of its proper divisors (52076167160).

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

30375352840 is a wasteful number, since it uses less digits than its factorization.

30375352840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 76404 (or 76386 counting only the distinct ones).

The product of its (nonzero) digits is 302400, while the sum is 40.

The spelling of 30375352840 in words is "thirty billion, three hundred seventy-five million, three hundred fifty-two thousand, eight hundred forty".