30645426 has 64 divisors (see below), whose sum is σ = 72576000. Its totient is φ = 8446656.

The previous prime is 30645421. The next prime is 30645427. The reversal of 30645426 is 62454603.

It is a junction number, because it is equal to n+sod(n) for n = 30645393 and 30645402.

It is not an unprimeable number, because it can be changed into a prime (30645421) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 205600 + ... + 205748.

It is an arithmetic number, because the mean of its divisors is an integer number (1134000).

Almost surely, 2^30645426 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 30645426, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (36288000).

30645426 is an abundant number, since it is smaller than the sum of its proper divisors (41930574).

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

30645426 is a wasteful number, since it uses less digits than its factorization.

30645426 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 303.

The product of its (nonzero) digits is 17280, while the sum is 30.

The square root of 30645426 is about 5535.8311029149. The cubic root of 30645426 is about 312.9357794390.

The spelling of 30645426 in words is "thirty million, six hundred forty-five thousand, four hundred twenty-six".