30042969 has 12 divisors (see below), whose sum is σ = 44030448. Its totient is φ = 18207640.

The previous prime is 30042953. The next prime is 30042973. The reversal of 30042969 is 96924003.

It is not a de Polignac number, because 30042969 - 2⁴ = 30042953 is a prime.

It is a super-2 number, since 2×30042969² = 1805159972669922, which contains 22 as substring.

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors.

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

It is not an unprimeable number, because it can be changed into a prime (30042919) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 41019 + ... + 41744.

It is an arithmetic number, because the mean of its divisors is an integer number (3669204).

Almost surely, 2^30042969 is an apocalyptic number.

It is an amenable number.

30042969 is a deficient number, since it is larger than the sum of its proper divisors (13987479).

30042969 is a wasteful number, since it uses less digits than its factorization.

30042969 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 82788 (or 82777 counting only the distinct ones).

The product of its (nonzero) digits is 11664, while the sum is 33.

The square root of 30042969 is about 5481.1466865976. The cubic root of 30042969 is about 310.8715294619.

The spelling of 30042969 in words is "thirty million, forty-two thousand, nine hundred sixty-nine".