30697380 has 120 divisors (see below), whose sum is σ = 110096448. Its totient is φ = 7013952.

The previous prime is 30697379. The next prime is 30697421. The reversal of 30697380 is 8379603.

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

It is an unprimeable number.

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 39 ways as a sum of consecutive naturals, for example, 9987 + ... + 12693.

Almost surely, 2^30697380 is an apocalyptic number.

30697380 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 30697380, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (55048224).

30697380 is an abundant number, since it is smaller than the sum of its proper divisors (79399068).

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

30697380 is a wasteful number, since it uses less digits than its factorization.

30697380 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2735 (or 2724 counting only the distinct ones).

The product of its (nonzero) digits is 27216, while the sum is 36.

The square root of 30697380 is about 5540.5216360917. The cubic root of 30697380 is about 313.1125223613.

The spelling of 30697380 in words is "thirty million, six hundred ninety-seven thousand, three hundred eighty".