30145628 has 24 divisors (see below), whose sum is σ = 56085120. Its totient is φ = 14137200.

The previous prime is 30145627. The next prime is 30145631. The reversal of 30145628 is 82654103.

It is a self number, because there is not a number n which added to its sum of digits gives 30145628.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30145627) 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, 5903 + ... + 9753.

It is an arithmetic number, because the mean of its divisors is an integer number (2336880).

Almost surely, 2^30145628 is an apocalyptic number.

30145628 is a gapful number since it is divisible by the number (38) formed by its first and last digit.

It is an amenable number.

30145628 is a deficient number, since it is larger than the sum of its proper divisors (25939492).

30145628 is a wasteful number, since it uses less digits than its factorization.

30145628 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3977 (or 3975 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 29.

The square root of 30145628 is about 5490.5034377550. The cubic root of 30145628 is about 311.2252170823.

The spelling of 30145628 in words is "thirty million, one hundred forty-five thousand, six hundred twenty-eight".