30914070 has 64 divisors (see below), whose sum is σ = 84478464. Its totient is φ = 7166720.

The previous prime is 30914069. The next prime is 30914077. The reversal of 30914070 is 7041903.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 30914070.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30914077) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5554 + ... + 9626.

It is an arithmetic number, because the mean of its divisors is an integer number (1319976).

Almost surely, 2^30914070 is an apocalyptic number.

30914070 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 30914070, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (42239232).

30914070 is an abundant number, since it is smaller than the sum of its proper divisors (53564394).

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

30914070 is a wasteful number, since it uses less digits than its factorization.

30914070 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4117.

The product of its (nonzero) digits is 756, while the sum is 24.

The square root of 30914070 is about 5560.0422660264. The cubic root of 30914070 is about 313.8475398177.

Adding to 30914070 its reverse (7041903), we get a palindrome (37955973).

The spelling of 30914070 in words is "thirty million, nine hundred fourteen thousand, seventy".