30367428 has 48 divisors (see below), whose sum is σ = 87212160. Its totient is φ = 8008704.

The previous prime is 30367427. The next prime is 30367439. The reversal of 30367428 is 82476303.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30367427) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12813 + ... + 14996.

It is an arithmetic number, because the mean of its divisors is an integer number (1816920).

Almost surely, 2^30367428 is an apocalyptic number.

It is an amenable number.

30367428 is an abundant number, since it is smaller than the sum of its proper divisors (56844732).

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

30367428 is a wasteful number, since it uses less digits than its factorization.

30367428 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27836 (or 27834 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 33.

The square root of 30367428 is about 5510.6649326556. The cubic root of 30367428 is about 311.9866447275.

The spelling of 30367428 in words is "thirty million, three hundred sixty-seven thousand, four hundred twenty-eight".