42744630 has 32 divisors (see below), whose sum is σ = 108622944. Its totient is φ = 10727936.

The previous prime is 42744607. The next prime is 42744641. The reversal of 42744630 is 3644724.

42744630 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 41397 + ... + 42416.

It is an arithmetic number, because the mean of its divisors is an integer number (3394467).

Almost surely, 2^42744630 is an apocalyptic number.

42744630 is an abundant number, since it is smaller than the sum of its proper divisors (65878314).

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

42744630 is a wasteful number, since it uses less digits than its factorization.

42744630 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 83840.

The product of its (nonzero) digits is 16128, while the sum is 30.

The square root of 42744630 is about 6537.9377482506. The cubic root of 42744630 is about 349.6448915310.

The spelling of 42744630 in words is "forty-two million, seven hundred forty-four thousand, six hundred thirty".