30253421 has 8 divisors (see below), whose sum is σ = 34945344. Its totient is φ = 25885120.

The previous prime is 30253411. The next prime is 30253423. The reversal of 30253421 is 12435203.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-30253421 is a prime.

It is a super-5 number, since 5×30253421⁵ (a number of 39 digits) contains 55555 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 30253393 and 30253402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30253423) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 80705 + ... + 81078.

It is an arithmetic number, because the mean of its divisors is an integer number (4368168).

Almost surely, 2^30253421 is an apocalyptic number.

It is an amenable number.

30253421 is a deficient number, since it is larger than the sum of its proper divisors (4691923).

30253421 is a wasteful number, since it uses less digits than its factorization.

30253421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 161811.

The product of its (nonzero) digits is 720, while the sum is 20.

The square root of 30253421 is about 5500.3109912077. The cubic root of 30253421 is about 311.5957295477.

Adding to 30253421 its reverse (12435203), we get a palindrome (42688624).

It can be divided in two parts, 3025 and 3421, that added together give a palindrome (6446).

The spelling of 30253421 in words is "thirty million, two hundred fifty-three thousand, four hundred twenty-one".