30703050 has 216 divisors, whose sum is σ = 103180896. Its totient is φ = 6648480.

The previous prime is 30703033. The next prime is 30703067. The reversal of 30703050 is 5030703.

It is an interprime number because it is at equal distance from previous prime (30703033) and next prime (30703067).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an alternating number because its digits alternate between odd and even.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 107 ways as a sum of consecutive naturals, for example, 1615941 + ... + 1615959.

Almost surely, 2^30703050 is an apocalyptic number.

30703050 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 30703050, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (51590448).

30703050 is an abundant number, since it is smaller than the sum of its proper divisors (72477846).

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

30703050 is a wasteful number, since it uses less digits than its factorization.

30703050 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72 (or 36 counting only the distinct ones).

The product of its (nonzero) digits is 315, while the sum is 18.

The square root of 30703050 is about 5541.0332971387. The cubic root of 30703050 is about 313.1317991281.

Adding to 30703050 its reverse (5030703), we get a palindrome (35733753).

The spelling of 30703050 in words is "thirty million, seven hundred three thousand, fifty".