30380142 has 32 divisors (see below), whose sum is σ = 66834432. Its totient is φ = 9147744.

The previous prime is 30380137. The next prime is 30380149. The reversal of 30380142 is 24108303.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30380149) 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, 478 + ... + 7809.

It is an arithmetic number, because the mean of its divisors is an integer number (2088576).

Almost surely, 2^30380142 is an apocalyptic number.

30380142 is an abundant number, since it is smaller than the sum of its proper divisors (36454290).

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

30380142 is a wasteful number, since it uses less digits than its factorization.

30380142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8352.

The product of its (nonzero) digits is 576, while the sum is 21.

The square root of 30380142 is about 5511.8183932347. The cubic root of 30380142 is about 312.0301787048.

Adding to 30380142 its reverse (24108303), we get a palindrome (54488445).

The spelling of 30380142 in words is "thirty million, three hundred eighty thousand, one hundred forty-two".