30108429 has 36 divisors (see below), whose sum is σ = 48771996. Its totient is φ = 18475776.

The previous prime is 30108413. The next prime is 30108431. The reversal of 30108429 is 92480103.

It can be written as a sum of positive squares in 2 ways, for example, as 8037225 + 22071204 = 2835^2 + 4698^2 .

It is not a de Polignac number, because 30108429 - 2⁴ = 30108413 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30108439) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 85117 + ... + 85469.

Almost surely, 2^30108429 is an apocalyptic number.

30108429 is a gapful number since it is divisible by the number (39) formed by its first and last digit.

It is an amenable number.

30108429 is a deficient number, since it is larger than the sum of its proper divisors (18663567).

30108429 is an frugal number, since it uses more digits than its factorization.

30108429 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 390 (or 369 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 27.

The square root of 30108429 is about 5487.1148156385. The cubic root of 30108429 is about 311.0971495105.

The spelling of 30108429 in words is "thirty million, one hundred eight thousand, four hundred twenty-nine".