30397752 has 96 divisors (see below), whose sum is σ = 102660480. Its totient is φ = 7894080.

The previous prime is 30397747. The next prime is 30397813. The reversal of 30397752 is 25779303.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2803 + ... + 8285.

It is an arithmetic number, because the mean of its divisors is an integer number (1069380).

Almost surely, 2^30397752 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 30397752, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (51330240).

30397752 is an abundant number, since it is smaller than the sum of its proper divisors (72262728).

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

30397752 is a wasteful number, since it uses less digits than its factorization.

30397752 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5513 (or 5506 counting only the distinct ones).

The product of its (nonzero) digits is 39690, while the sum is 36.

The square root of 30397752 is about 5513.4156382410. The cubic root of 30397752 is about 312.0904570063.

The spelling of 30397752 in words is "thirty million, three hundred ninety-seven thousand, seven hundred fifty-two".