30425540 has 24 divisors (see below), whose sum is σ = 64615320. Its totient is φ = 12032768.

The previous prime is 30425537. The next prime is 30425561. The reversal of 30425540 is 4552403.

It can be written as a sum of positive squares in 4 ways, for example, as 984064 + 29441476 = 992^2 + 5426^2 .

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, 6767 + ... + 10326.

It is an arithmetic number, because the mean of its divisors is an integer number (2692305).

Almost surely, 2^30425540 is an apocalyptic number.

It is an amenable number.

30425540 is an abundant number, since it is smaller than the sum of its proper divisors (34189780).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

30425540 is a wasteful number, since it uses less digits than its factorization.

30425540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17191 (or 17189 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 23.

The square root of 30425540 is about 5515.9350975152. The cubic root of 30425540 is about 312.1855268474.

Adding to 30425540 its reverse (4552403), we get a palindrome (34977943).

The spelling of 30425540 in words is "thirty million, four hundred twenty-five thousand, five hundred forty".