30401929 has 4 divisors (see below), whose sum is σ = 31723776. Its totient is φ = 29080084.

The previous prime is 30401911. The next prime is 30401963. The reversal of 30401929 is 92910403.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 92910403 = 29 ⋅3203807.

It is a cyclic number.

It is not a de Polignac number, because 30401929 - 2⁷ = 30401801 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 30401897 and 30401906.

It is not an unprimeable number, because it can be changed into a prime (30401629) 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, 660889 + ... + 660934.

It is an arithmetic number, because the mean of its divisors is an integer number (7930944).

Almost surely, 2^30401929 is an apocalyptic number.

It is an amenable number.

30401929 is a deficient number, since it is larger than the sum of its proper divisors (1321847).

30401929 is a wasteful number, since it uses less digits than its factorization.

30401929 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1321846.

The product of its (nonzero) digits is 1944, while the sum is 28.

The square root of 30401929 is about 5513.7944285220. The cubic root of 30401929 is about 312.1047512885.

The spelling of 30401929 in words is "thirty million, four hundred one thousand, nine hundred twenty-nine".