30626142 has 8 divisors (see below), whose sum is σ = 61252296. Its totient is φ = 10208712.

The previous prime is 30626137. The next prime is 30626143. The reversal of 30626142 is 24162603.

It is a sphenic number, since it is the product of 3 distinct primes.

30626142 is an admirable number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30626143) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2552173 + ... + 2552184.

It is an arithmetic number, because the mean of its divisors is an integer number (7656537).

Almost surely, 2^30626142 is an apocalyptic number.

30626142 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

30626142 is a wasteful number, since it uses less digits than its factorization.

30626142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5104362.

The product of its (nonzero) digits is 1728, while the sum is 24.

The square root of 30626142 is about 5534.0890849353. The cubic root of 30626142 is about 312.8701261415.

Adding to 30626142 its reverse (24162603), we get a palindrome (54788745).

The spelling of 30626142 in words is "thirty million, six hundred twenty-six thousand, one hundred forty-two".