42975030 has 64 divisors (see below), whose sum is σ = 118983168. Its totient is φ = 9730560.

The previous prime is 42975029. The next prime is 42975041. The reversal of 42975030 is 3057924.

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 (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 22825 + ... + 24635.

It is an arithmetic number, because the mean of its divisors is an integer number (1859112).

Almost surely, 2^42975030 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 42975030, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (59491584).

42975030 is an abundant number, since it is smaller than the sum of its proper divisors (76008138).

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

42975030 is a wasteful number, since it uses less digits than its factorization.

42975030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1941.

The product of its (nonzero) digits is 7560, while the sum is 30.

The square root of 42975030 is about 6555.5343031671. The cubic root of 42975030 is about 350.2719790711.

The spelling of 42975030 in words is "forty-two million, nine hundred seventy-five thousand, thirty".