30697542 has 20 divisors (see below), whose sum is σ = 68785596. Its totient is φ = 10232460.

The previous prime is 30697487. The next prime is 30697543. The reversal of 30697542 is 24579603.

It is a junction number, because it is equal to n+sod(n) for n = 30697497 and 30697506.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30697543) 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 9 ways as a sum of consecutive naturals, for example, 94584 + ... + 94907.

Almost surely, 2^30697542 is an apocalyptic number.

30697542 is an abundant number, since it is smaller than the sum of its proper divisors (38088054).

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

30697542 is a wasteful number, since it uses less digits than its factorization.

30697542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 189505 (or 189496 counting only the distinct ones).

The product of its (nonzero) digits is 45360, while the sum is 36.

The square root of 30697542 is about 5540.5362556345. The cubic root of 30697542 is about 313.1130731590.

The spelling of 30697542 in words is "thirty million, six hundred ninety-seven thousand, five hundred forty-two".