42722030 has 32 divisors (see below), whose sum is σ = 85494528. Its totient is φ = 15264000.

The previous prime is 42722027. The next prime is 42722033. The reversal of 42722030 is 3022724.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (42722027) and next prime (42722033).

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 42721993 and 42722011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42722033) 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, 1271 + ... + 9330.

It is an arithmetic number, because the mean of its divisors is an integer number (2671704).

Almost surely, 2^42722030 is an apocalyptic number.

42722030 is an abundant number, since it is smaller than the sum of its proper divisors (42772498).

42722030 is a wasteful number, since it uses less digits than its factorization.

42722030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10652.

The product of its (nonzero) digits is 672, while the sum is 20.

The square root of 42722030 is about 6536.2091459806. The cubic root of 42722030 is about 349.5832590905.

Adding to 42722030 its reverse (3022724), we get a palindrome (45744754).

The spelling of 42722030 in words is "forty-two million, seven hundred twenty-two thousand, thirty".