30404032 has 28 divisors (see below), whose sum is σ = 60590176. Its totient is φ = 15137280.

The previous prime is 30404029. The next prime is 30404039. The reversal of 30404032 is 23040403.

It is a Harshad number since it is a multiple of its sum of digits (16).

It is a junction number, because it is equal to n+sod(n) for n = 30403997 and 30404015.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30404039) 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, 16468 + ... + 18220.

Almost surely, 2^30404032 is an apocalyptic number.

30404032 is a gapful number since it is divisible by the number (32) formed by its first and last digit.

It is an amenable number.

30404032 is a deficient number, since it is larger than the sum of its proper divisors (30186144).

30404032 is a wasteful number, since it uses less digits than its factorization.

30404032 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2036 (or 2026 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 16.

The square root of 30404032 is about 5513.9851287431. The cubic root of 30404032 is about 312.1119475551. Note that the first 3 decimals are identical.

Adding to 30404032 its reverse (23040403), we get a palindrome (53444435).

It can be divided in two parts, 3040403 and 2, that multiplied together give a palindrome (6080806).

The spelling of 30404032 in words is "thirty million, four hundred four thousand, thirty-two".