30022072 has 8 divisors (see below), whose sum is σ = 56291400. Its totient is φ = 15011032.

The previous prime is 30022067. The next prime is 30022073. The reversal of 30022072 is 27022003.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30022073) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1876372 + ... + 1876387.

It is an arithmetic number, because the mean of its divisors is an integer number (7036425).

Almost surely, 2^30022072 is an apocalyptic number.

It is an amenable number.

30022072 is a deficient number, since it is larger than the sum of its proper divisors (26269328).

30022072 is a wasteful number, since it uses less digits than its factorization.

30022072 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3752765 (or 3752761 counting only the distinct ones).

The product of its (nonzero) digits is 168, while the sum is 16.

The square root of 30022072 is about 5479.2400932976. The cubic root of 30022072 is about 310.7994350656.

Adding to 30022072 its reverse (27022003), we get a palindrome (57044075).

The spelling of 30022072 in words is "thirty million, twenty-two thousand, seventy-two".