30726464 has 14 divisors (see below), whose sum is σ = 60972954. Its totient is φ = 15363200.

The previous prime is 30726461. The next prime is 30726469. The reversal of 30726464 is 46462703.

It can be written as a sum of positive squares in only one way, i.e., 27457600 + 3268864 = 5240^2 + 1808^2 .

It is a Harshad number since it is a multiple of its sum of digits (32).

30726464 is a modest number, since divided by 6464 gives 3072 as remainder.

It is a self number, because there is not a number n which added to its sum of digits gives 30726464.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30726461) 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 as a sum of consecutive naturals, namely, 239987 + ... + 240114.

It is an arithmetic number, because the mean of its divisors is an integer number (4355211).

Almost surely, 2^30726464 is an apocalyptic number.

It is an amenable number.

30726464 is a deficient number, since it is larger than the sum of its proper divisors (30246490).

30726464 is an equidigital number, since it uses as much as digits as its factorization.

30726464 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 480113 (or 480103 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 32.

The square root of 30726464 is about 5543.1456773208. The cubic root of 30726464 is about 313.2113765103.

The spelling of 30726464 in words is "thirty million, seven hundred twenty-six thousand, four hundred sixty-four".