30151420 has 48 divisors (see below), whose sum is σ = 69007680. Its totient is φ = 10999296.

The previous prime is 30151399. The next prime is 30151439. The reversal of 30151420 is 2415103.

It is a junction number, because it is equal to n+sod(n) for n = 30151394 and 30151403.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 22489 + ... + 23791.

It is an arithmetic number, because the mean of its divisors is an integer number (1437660).

Almost surely, 2^30151420 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 30151420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (34503840).

30151420 is an abundant number, since it is smaller than the sum of its proper divisors (38856260).

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

30151420 is a wasteful number, since it uses less digits than its factorization.

30151420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1414 (or 1412 counting only the distinct ones).

The product of its (nonzero) digits is 120, while the sum is 16.

The square root of 30151420 is about 5491.0308686075. The cubic root of 30151420 is about 311.2451481209.

Adding to 30151420 its reverse (2415103), we get a palindrome (32566523).

The spelling of 30151420 in words is "thirty million, one hundred fifty-one thousand, four hundred twenty".