30425645 has 8 divisors (see below), whose sum is σ = 36778104. Its totient is φ = 24162304.

The previous prime is 30425623. The next prime is 30425671. The reversal of 30425645 is 54652403.

It can be written as a sum of positive squares in 4 ways, for example, as 98596 + 30327049 = 314^2 + 5507^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 30425645 - 2²⁰ = 29377069 is a prime.

It is a super-3 number, since 3×30425645³ (a number of 23 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21524 + ... + 22893.

It is an arithmetic number, because the mean of its divisors is an integer number (4597263).

Almost surely, 2^30425645 is an apocalyptic number.

It is an amenable number.

30425645 is a deficient number, since it is larger than the sum of its proper divisors (6352459).

30425645 is a wasteful number, since it uses less digits than its factorization.

30425645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44559.

The product of its (nonzero) digits is 14400, while the sum is 29.

The square root of 30425645 is about 5515.9446153855. The cubic root of 30425645 is about 312.1858859694.

The spelling of 30425645 in words is "thirty million, four hundred twenty-five thousand, six hundred forty-five".