30725493 has 8 divisors (see below), whose sum is σ = 42748608. Its totient is φ = 19593024.

The previous prime is 30725483. The next prime is 30725507. The reversal of 30725493 is 39452703.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 30725493 - 2¹⁴ = 30709109 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30725423) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 222580 + ... + 222717.

It is an arithmetic number, because the mean of its divisors is an integer number (5343576).

Almost surely, 2^30725493 is an apocalyptic number.

It is an amenable number.

30725493 is a deficient number, since it is larger than the sum of its proper divisors (12023115).

30725493 is a wasteful number, since it uses less digits than its factorization.

30725493 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 445323.

The product of its (nonzero) digits is 22680, while the sum is 33.

The square root of 30725493 is about 5543.0580909819. The cubic root of 30725493 is about 313.2080771671.

The spelling of 30725493 in words is "thirty million, seven hundred twenty-five thousand, four hundred ninety-three".