30250872540 has 288 divisors, whose sum is σ = 107260433280. Its totient is φ = 6757890048.

The previous prime is 30250872511. The next prime is 30250872557. The reversal of 30250872540 is 4527805203.

30250872540 is a `hidden beast` number, since 30 + 2 + 5 + 0 + 87 + 2 + 540 = 666.

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 = 30250872495 and 30250872504.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 21168546 + ... + 21169974.

It is an arithmetic number, because the mean of its divisors is an integer number (372432060).

Almost surely, 2^30250872540 is an apocalyptic number.

30250872540 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 30250872540, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (53630216640).

30250872540 is an abundant number, since it is smaller than the sum of its proper divisors (77009560740).

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

30250872540 is a wasteful number, since it uses less digits than its factorization.

30250872540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1821 (or 1816 counting only the distinct ones).

The product of its (nonzero) digits is 67200, while the sum is 36.

The spelling of 30250872540 in words is "thirty billion, two hundred fifty million, eight hundred seventy-two thousand, five hundred forty".