30126450 has 24 divisors (see below), whose sum is σ = 74713968. Its totient is φ = 8033680.

The previous prime is 30126449. The next prime is 30126461. The reversal of 30126450 is 5462103.

It is a happy number.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 100272 + ... + 100571.

It is an arithmetic number, because the mean of its divisors is an integer number (3113082).

Almost surely, 2^30126450 is an apocalyptic number.

30126450 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

30126450 is an abundant number, since it is smaller than the sum of its proper divisors (44587518).

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

30126450 is a wasteful number, since it uses less digits than its factorization.

30126450 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 200858 (or 200853 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 21.

The square root of 30126450 is about 5488.7566898160. The cubic root of 30126450 is about 311.1592048193.

Adding to 30126450 its reverse (5462103), we get a palindrome (35588553).

The spelling of 30126450 in words is "thirty million, one hundred twenty-six thousand, four hundred fifty".