30322040 has 32 divisors (see below), whose sum is σ = 77971680. Its totient is φ = 10396032.

The previous prime is 30322031. The next prime is 30322049. The reversal of 30322040 is 4022303.

It is an interprime number because it is at equal distance from previous prime (30322031) and next prime (30322049).

It is a super-2 number, since 2×30322040² = 1838852219523200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (14).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30322049) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 53867 + ... + 54426.

It is an arithmetic number, because the mean of its divisors is an integer number (2436615).

Almost surely, 2^30322040 is an apocalyptic number.

It is an amenable number.

30322040 is an abundant number, since it is smaller than the sum of its proper divisors (47649640).

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

30322040 is a wasteful number, since it uses less digits than its factorization.

30322040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 108311 (or 108307 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 14.

The square root of 30322040 is about 5506.5451964004. The cubic root of 30322040 is about 311.8311325939.

Adding to 30322040 its reverse (4022303), we get a palindrome (34344343).

The spelling of 30322040 in words is "thirty million, three hundred twenty-two thousand, forty".