42630772 has 12 divisors (see below), whose sum is σ = 75289060. Its totient is φ = 21119616.

The previous prime is 42630727. The next prime is 42630779. The reversal of 42630772 is 27703624.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 20106256 + 22524516 = 4484^2 + 4746^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42630779) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 48453 + ... + 49324.

Almost surely, 2^42630772 is an apocalyptic number.

It is an amenable number.

42630772 is a deficient number, since it is larger than the sum of its proper divisors (32658288).

42630772 is a wasteful number, since it uses less digits than its factorization.

42630772 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 97890 (or 97888 counting only the distinct ones).

The product of its (nonzero) digits is 14112, while the sum is 31.

The square root of 42630772 is about 6529.2244562429. The cubic root of 42630772 is about 349.3341681538.

The spelling of 42630772 in words is "forty-two million, six hundred thirty thousand, seven hundred seventy-two".