30726069 has 16 divisors (see below), whose sum is σ = 44811264. Its totient is φ = 18572400.

The previous prime is 30726067. The next prime is 30726083. The reversal of 30726069 is 96062703.

It is not a de Polignac number, because 30726069 - 2¹ = 30726067 is a prime.

It is a super-2 number, since 2×30726069² = 1888182632385522, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30726067) 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, 14274 + ... + 16284.

It is an arithmetic number, because the mean of its divisors is an integer number (2800704).

Almost surely, 2^30726069 is an apocalyptic number.

It is an amenable number.

30726069 is a deficient number, since it is larger than the sum of its proper divisors (14085195).

30726069 is a wasteful number, since it uses less digits than its factorization.

30726069 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2488.

The product of its (nonzero) digits is 13608, while the sum is 33.

The square root of 30726069 is about 5543.1100476177. The cubic root of 30726069 is about 313.2100343554.

The spelling of 30726069 in words is "thirty million, seven hundred twenty-six thousand, sixty-nine".