42970590 has 96 divisors (see below), whose sum is σ = 126715680. Its totient is φ = 10015488.

The previous prime is 42970553. The next prime is 42970591. The reversal of 42970590 is 9507924.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42970591) by changing a digit.

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 47 ways as a sum of consecutive naturals, for example, 21264 + ... + 23196.

It is an arithmetic number, because the mean of its divisors is an integer number (1319955).

Almost surely, 2^42970590 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 42970590, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (63357840).

42970590 is an abundant number, since it is smaller than the sum of its proper divisors (83745090).

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

42970590 is a wasteful number, since it uses less digits than its factorization.

42970590 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1978 (or 1975 counting only the distinct ones).

The product of its (nonzero) digits is 22680, while the sum is 36.

The square root of 42970590 is about 6555.1956492541. The cubic root of 42970590 is about 350.2599157780.

The spelling of 42970590 in words is "forty-two million, nine hundred seventy thousand, five hundred ninety".