30144431 has 16 divisors (see below), whose sum is σ = 33331200. Its totient is φ = 27151200.

The previous prime is 30144407. The next prime is 30144449. The reversal of 30144431 is 13444103.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 30144431 - 2¹⁸ = 29882287 is a prime.

It is a super-2 number, since 2×30144431² = 1817373440627522, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30144131) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 35510 + ... + 36348.

It is an arithmetic number, because the mean of its divisors is an integer number (2083200).

Almost surely, 2^30144431 is an apocalyptic number.

30144431 is a gapful number since it is divisible by the number (31) formed by its first and last digit.

30144431 is a deficient number, since it is larger than the sum of its proper divisors (3186769).

30144431 is a wasteful number, since it uses less digits than its factorization.

30144431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 950.

The product of its (nonzero) digits is 576, while the sum is 20.

The square root of 30144431 is about 5490.3944302755. The cubic root of 30144431 is about 311.2210977286.

Adding to 30144431 its reverse (13444103), we get a palindrome (43588534).

The spelling of 30144431 in words is "thirty million, one hundred forty-four thousand, four hundred thirty-one".