42723330 has 32 divisors (see below), whose sum is σ = 110424384. Its totient is φ = 10516416.

The previous prime is 42723319. The next prime is 42723341. The reversal of 42723330 is 3332724.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (42723319) and next prime (42723341).

It is a self number, because there is not a number n which added to its sum of digits gives 42723330.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 54384 + ... + 55163.

It is an arithmetic number, because the mean of its divisors is an integer number (3450762).

Almost surely, 2^42723330 is an apocalyptic number.

42723330 is an abundant number, since it is smaller than the sum of its proper divisors (67701054).

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

42723330 is a wasteful number, since it uses less digits than its factorization.

42723330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 109570.

The product of its (nonzero) digits is 3024, while the sum is 24.

The square root of 42723330 is about 6536.3085912463. The cubic root of 42723330 is about 349.5868049084.

The spelling of 42723330 in words is "forty-two million, seven hundred twenty-three thousand, three hundred thirty".