42876990 has 72 divisors (see below), whose sum is σ = 120758040. Its totient is φ = 10550592.

The previous prime is 42876979. The next prime is 42877001. The reversal of 42876990 is 9967824.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (42876979) and next prime (42877001).

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 13801 + ... + 16619.

It is an arithmetic number, because the mean of its divisors is an integer number (1677195).

Almost surely, 2^42876990 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 42876990, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (60379020).

42876990 is an abundant number, since it is smaller than the sum of its proper divisors (77881050).

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

42876990 is a wasteful number, since it uses less digits than its factorization.

42876990 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2858 (or 2842 counting only the distinct ones).

The product of its (nonzero) digits is 217728, while the sum is 45.

The square root of 42876990 is about 6548.0523821973. The cubic root of 42876990 is about 350.0054148822.

The spelling of 42876990 in words is "forty-two million, eight hundred seventy-six thousand, nine hundred ninety".