30426253 has 16 divisors (see below), whose sum is σ = 35985600. Its totient is φ = 25512240.

The previous prime is 30426233. The next prime is 30426271. The reversal of 30426253 is 35262403.

It is a happy number.

It is a de Polignac number, because none of the positive numbers 2^k-30426253 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30426203) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 23538 + ... + 24796.

It is an arithmetic number, because the mean of its divisors is an integer number (2249100).

Almost surely, 2^30426253 is an apocalyptic number.

It is an amenable number.

30426253 is a deficient number, since it is larger than the sum of its proper divisors (5559347).

30426253 is a wasteful number, since it uses less digits than its factorization.

30426253 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1309 (or 1283 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 25.

The square root of 30426253 is about 5515.9997280638. Note that the first 3 decimals coincide. The cubic root of 30426253 is about 312.1879654406.

Adding to 30426253 its reverse (35262403), we get a palindrome (65688656).

The spelling of 30426253 in words is "thirty million, four hundred twenty-six thousand, two hundred fifty-three".