30142590 has 32 divisors (see below), whose sum is σ = 72648576. Its totient is φ = 8004000.

The previous prime is 30142577. The next prime is 30142591. The reversal of 30142590 is 9524103.

It is a self number, because there is not a number n which added to its sum of digits gives 30142590.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30142591) 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, 5529 + ... + 9531.

It is an arithmetic number, because the mean of its divisors is an integer number (2270268).

Almost surely, 2^30142590 is an apocalyptic number.

30142590 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

30142590 is an abundant number, since it is smaller than the sum of its proper divisors (42505986).

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

30142590 is a wasteful number, since it uses less digits than its factorization.

30142590 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4264.

The product of its (nonzero) digits is 1080, while the sum is 24.

The square root of 30142590 is about 5490.2267712727. The cubic root of 30142590 is about 311.2147619015.

Adding to 30142590 its reverse (9524103), we get a palindrome (39666693).

The spelling of 30142590 in words is "thirty million, one hundred forty-two thousand, five hundred ninety".