30703403640 has 256 divisors, whose sum is σ = 116431902720. Its totient is φ = 6302914560.

The previous prime is 30703403617. The next prime is 30703403651. The reversal of 30703403640 is 4630430703.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 30703403598 and 30703403607.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 366045 + ... + 442035.

It is an arithmetic number, because the mean of its divisors is an integer number (454812120).

Almost surely, 2^30703403640 is an apocalyptic number.

30703403640 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 30703403640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (58215951360).

30703403640 is an abundant number, since it is smaller than the sum of its proper divisors (85728499080).

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

30703403640 is a wasteful number, since it uses less digits than its factorization.

30703403640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 76062 (or 76058 counting only the distinct ones).

The product of its (nonzero) digits is 18144, while the sum is 30.

The spelling of 30703403640 in words is "thirty billion, seven hundred three million, four hundred three thousand, six hundred forty".