30724342 has 8 divisors (see below), whose sum is σ = 50276232. Its totient is φ = 13965600.

The previous prime is 30724339. The next prime is 30724399. The reversal of 30724342 is 24342703.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 698259 + ... + 698302.

It is an arithmetic number, because the mean of its divisors is an integer number (6284529).

Almost surely, 2^30724342 is an apocalyptic number.

30724342 is a deficient number, since it is larger than the sum of its proper divisors (19551890).

30724342 is a wasteful number, since it uses less digits than its factorization.

30724342 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1396574.

The product of its (nonzero) digits is 4032, while the sum is 25.

The square root of 30724342 is about 5542.9542664539. The cubic root of 30724342 is about 313.2041661151.

It can be divided in two parts, 307 and 24342, that added together give a square (24649 = 157²).

The spelling of 30724342 in words is "thirty million, seven hundred twenty-four thousand, three hundred forty-two".