30347420 has 24 divisors (see below), whose sum is σ = 64390704. Its totient is φ = 12013056.

The previous prime is 30347399. The next prime is 30347423. The reversal of 30347420 is 2474303.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30347423) 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, 5882 + ... + 9761.

It is an arithmetic number, because the mean of its divisors is an integer number (2682946).

Almost surely, 2^30347420 is an apocalyptic number.

It is an amenable number.

30347420 is an abundant number, since it is smaller than the sum of its proper divisors (34043284).

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

30347420 is a wasteful number, since it uses less digits than its factorization.

30347420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15749 (or 15747 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 23.

The square root of 30347420 is about 5508.8492446245. The cubic root of 30347420 is about 311.9181107683.

The spelling of 30347420 in words is "thirty million, three hundred forty-seven thousand, four hundred twenty".