30095640 has 96 divisors (see below), whose sum is σ = 100245600. Its totient is φ = 7825920.

The previous prime is 30095633. The next prime is 30095669. The reversal of 30095640 is 4659003.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 13741 + ... + 15779.

It is an arithmetic number, because the mean of its divisors is an integer number (1044225).

Almost surely, 2^30095640 is an apocalyptic number.

30095640 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 30095640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (50122800).

30095640 is an abundant number, since it is smaller than the sum of its proper divisors (70149960).

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

30095640 is a wasteful number, since it uses less digits than its factorization.

30095640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2097 (or 2090 counting only the distinct ones).

The product of its (nonzero) digits is 3240, while the sum is 27.

The square root of 30095640 is about 5485.9493253219. The cubic root of 30095640 is about 311.0530955690.

It can be divided in two parts, 3009 and 5640, that added together give a square (8649 = 93²).

The spelling of 30095640 in words is "thirty million, ninety-five thousand, six hundred forty".