30646045 has 4 divisors (see below), whose sum is σ = 36775260. Its totient is φ = 24516832.

The previous prime is 30646043. The next prime is 30646061. The reversal of 30646045 is 54064603.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 7778521 + 22867524 = 2789^2 + 4782^2 .

It is a cyclic number.

It is not a de Polignac number, because 30646045 - 2¹ = 30646043 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30646043) 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, 3064600 + ... + 3064609.

It is an arithmetic number, because the mean of its divisors is an integer number (9193815).

Almost surely, 2^30646045 is an apocalyptic number.

It is an amenable number.

30646045 is a deficient number, since it is larger than the sum of its proper divisors (6129215).

30646045 is an equidigital number, since it uses as much as digits as its factorization.

30646045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6129214.

The product of its (nonzero) digits is 8640, while the sum is 28.

The square root of 30646045 is about 5535.8870111302. The cubic root of 30646045 is about 312.9378863977.

The spelling of 30646045 in words is "thirty million, six hundred forty-six thousand, forty-five".