30794790 has 48 divisors (see below), whose sum is σ = 79876944. Its totient is φ = 7553280.

The previous prime is 30794783. The next prime is 30794791. The reversal of 30794790 is 9749703.

It is a super-2 number, since 2×30794790² = 1896638182288200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30794791) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 109450 + ... + 109730.

It is an arithmetic number, because the mean of its divisors is an integer number (1664103).

Almost surely, 2^30794790 is an apocalyptic number.

30794790 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 30794790, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (39938472).

30794790 is an abundant number, since it is smaller than the sum of its proper divisors (49082154).

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

30794790 is a wasteful number, since it uses less digits than its factorization.

30794790 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 585 (or 304 counting only the distinct ones).

The product of its (nonzero) digits is 47628, while the sum is 39.

The square root of 30794790 is about 5549.3053619350. The cubic root of 30794790 is about 313.4433658624.

The spelling of 30794790 in words is "thirty million, seven hundred ninety-four thousand, seven hundred ninety".