30421736 has 32 divisors (see below), whose sum is σ = 60350400. Its totient is φ = 14336640.

The previous prime is 30421723. The next prime is 30421739. The reversal of 30421736 is 63712403.

It is not an unprimeable number, because it can be changed into a prime (30421739) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 39596 + ... + 40356.

It is an arithmetic number, because the mean of its divisors is an integer number (1885950).

Almost surely, 2^30421736 is an apocalyptic number.

It is an amenable number.

30421736 is a deficient number, since it is larger than the sum of its proper divisors (29928664).

30421736 is a wasteful number, since it uses less digits than its factorization.

30421736 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1049 (or 1045 counting only the distinct ones).

The product of its (nonzero) digits is 3024, while the sum is 26.

The square root of 30421736 is about 5515.5902675960. The cubic root of 30421736 is about 312.1725158130.

The spelling of 30421736 in words is "thirty million, four hundred twenty-one thousand, seven hundred thirty-six".