30429140 has 24 divisors (see below), whose sum is σ = 73030272. Its totient is φ = 10432800.

The previous prime is 30429131. The next prime is 30429151. The reversal of 30429140 is 4192403.

It is a super-2 number, since 2×30429140² = 1851865122279200, which contains 22 as substring.

It is a congruent number.

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 7 ways as a sum of consecutive naturals, for example, 108536 + ... + 108815.

It is an arithmetic number, because the mean of its divisors is an integer number (3042928).

Almost surely, 2^30429140 is an apocalyptic number.

It is an amenable number.

30429140 is an abundant number, since it is smaller than the sum of its proper divisors (42601132).

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

30429140 is a wasteful number, since it uses less digits than its factorization.

30429140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 217367 (or 217365 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 23.

The square root of 30429140 is about 5516.2614151253. The cubic root of 30429140 is about 312.1978391304.

The spelling of 30429140 in words is "thirty million, four hundred twenty-nine thousand, one hundred forty".