30490625 has 24 divisors (see below), whose sum is σ = 41622336. Its totient is φ = 22150000.

The previous prime is 30490591. The next prime is 30490637. The reversal of 30490625 is 52609403.

It is not a de Polignac number, because 30490625 - 2¹² = 30486529 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 33932 + ... + 34818.

It is an arithmetic number, because the mean of its divisors is an integer number (1734264).

It is a Proth number, since it is equal to 1861 ⋅ 2¹⁴ + 1 and 1861 < 2¹⁴.

Almost surely, 2^30490625 is an apocalyptic number.

It is an amenable number.

30490625 is a deficient number, since it is larger than the sum of its proper divisors (11131711).

30490625 is an frugal number, since it uses more digits than its factorization.

30490625 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 923 (or 903 counting only the distinct ones).

The product of its (nonzero) digits is 6480, while the sum is 29.

The square root of 30490625 is about 5521.8316707412. The cubic root of 30490625 is about 312.4079729019.

The spelling of 30490625 in words is "thirty million, four hundred ninety thousand, six hundred twenty-five".