42573630 has 32 divisors (see below), whose sum is σ = 111466368. Its totient is φ = 10320800.

The previous prime is 42573611. The next prime is 42573631. The reversal of 42573630 is 3637524.

42573630 = 2916² + 2917² + ... + 2920².

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42573631) 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, 64176 + ... + 64835.

It is an arithmetic number, because the mean of its divisors is an integer number (3483324).

Almost surely, 2^42573630 is an apocalyptic number.

42573630 is an abundant number, since it is smaller than the sum of its proper divisors (68892738).

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

42573630 is a wasteful number, since it uses less digits than its factorization.

42573630 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 129032.

The product of its (nonzero) digits is 15120, while the sum is 30.

The square root of 42573630 is about 6524.8471246459. The cubic root of 42573630 is about 349.1780166419.

It can be divided in two parts, 4257 and 3630, that added together give a palindrome (7887).

The spelling of 42573630 in words is "forty-two million, five hundred seventy-three thousand, six hundred thirty".