30426643 has 16 divisors (see below), whose sum is σ = 33613216. Its totient is φ = 27371520.

The previous prime is 30426637. The next prime is 30426653. The reversal of 30426643 is 34662403.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-30426643 is a prime.

It is not an unprimeable number, because it can be changed into a prime (30426653) 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, 157555 + ... + 157747.

It is an arithmetic number, because the mean of its divisors is an integer number (2100826).

Almost surely, 2^30426643 is an apocalyptic number.

30426643 is a deficient number, since it is larger than the sum of its proper divisors (3186573).

30426643 is a wasteful number, since it uses less digits than its factorization.

30426643 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 454.

The product of its (nonzero) digits is 10368, while the sum is 28.

The square root of 30426643 is about 5516.0350796564. The cubic root of 30426643 is about 312.1892992973.

The spelling of 30426643 in words is "thirty million, four hundred twenty-six thousand, six hundred forty-three".