30302940 has 24 divisors (see below), whose sum is σ = 84848400. Its totient is φ = 8080768.

The previous prime is 30302933. The next prime is 30302947. The reversal of 30302940 is 4920303.

It is an interprime number because it is at equal distance from previous prime (30302933) and next prime (30302947).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30302947) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 252465 + ... + 252584.

It is an arithmetic number, because the mean of its divisors is an integer number (3535350).

Almost surely, 2^30302940 is an apocalyptic number.

30302940 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

30302940 is an abundant number, since it is smaller than the sum of its proper divisors (54545460).

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

30302940 is a wasteful number, since it uses less digits than its factorization.

30302940 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 505061 (or 505059 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 21.

The square root of 30302940 is about 5504.8106234456. The cubic root of 30302940 is about 311.7656441941.

The spelling of 30302940 in words is "thirty million, three hundred two thousand, nine hundred forty".