42982919 has 12 divisors (see below), whose sum is σ = 52099632. Its totient is φ = 34617600.

The previous prime is 42982913. The next prime is 42982943. The reversal of 42982919 is 91928924.

It is not a de Polignac number, because 42982919 - 2⁸ = 42982663 is a prime.

It is a super-2 number, since 2×42982919² = 3695062651521122, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 42982919.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42982913) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 71219 + ... + 71819.

It is an arithmetic number, because the mean of its divisors is an integer number (4341636).

Almost surely, 2^42982919 is an apocalyptic number.

42982919 is a deficient number, since it is larger than the sum of its proper divisors (9116713).

42982919 is an frugal number, since it uses more digits than its factorization.

42982919 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1226 (or 625 counting only the distinct ones).

The product of its digits is 93312, while the sum is 44.

The square root of 42982919 is about 6556.1359808961. The cubic root of 42982919 is about 350.2934111025.

The spelling of 42982919 in words is "forty-two million, nine hundred eighty-two thousand, nine hundred nineteen".