30057429 has 4 divisors (see below), whose sum is σ = 40076576. Its totient is φ = 20038284.

The previous prime is 30057409. The next prime is 30057437. The reversal of 30057429 is 92475003.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 92475003 = 3 ⋅30825001.

It is not a de Polignac number, because 30057429 - 2⁵ = 30057397 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 30057396 and 30057405.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30057409) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5009569 + ... + 5009574.

It is an arithmetic number, because the mean of its divisors is an integer number (10019144).

Almost surely, 2^30057429 is an apocalyptic number.

It is an amenable number.

30057429 is a deficient number, since it is larger than the sum of its proper divisors (10019147).

30057429 is a wasteful number, since it uses less digits than its factorization.

30057429 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10019146.

The product of its (nonzero) digits is 7560, while the sum is 30.

The square root of 30057429 is about 5482.4655949673. The cubic root of 30057429 is about 310.9213967183.

The spelling of 30057429 in words is "thirty million, fifty-seven thousand, four hundred twenty-nine".