30802740 has 48 divisors (see below), whose sum is σ = 86553600. Its totient is φ = 8184960.

The previous prime is 30802721. The next prime is 30802741. The reversal of 30802740 is 4720803.

It is a self number, because there is not a number n which added to its sum of digits gives 30802740.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30802741) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 20205 + ... + 21675.

It is an arithmetic number, because the mean of its divisors is an integer number (1803200).

Almost surely, 2^30802740 is an apocalyptic number.

30802740 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

30802740 is an abundant number, since it is smaller than the sum of its proper divisors (55750860).

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

30802740 is a wasteful number, since it uses less digits than its factorization.

30802740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1832 (or 1830 counting only the distinct ones).

The product of its (nonzero) digits is 1344, while the sum is 24.

The square root of 30802740 is about 5550.0216215795. The cubic root of 30802740 is about 313.4703364458.

The spelling of 30802740 in words is "thirty million, eight hundred two thousand, seven hundred forty".