42965558 has 4 divisors (see below), whose sum is σ = 64448340. Its totient is φ = 21482778.

The previous prime is 42965539. The next prime is 42965591. The reversal of 42965558 is 85556924.

It is a semiprime because it is the product of two primes.

It is a super-3 number, since 3×42965558³ (a number of 24 digits) contains 333 as substring.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10741388 + ... + 10741391.

It is an arithmetic number, because the mean of its divisors is an integer number (16112085).

Almost surely, 2^42965558 is an apocalyptic number.

42965558 is a deficient number, since it is larger than the sum of its proper divisors (21482782).

42965558 is a wasteful number, since it uses less digits than its factorization.

42965558 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21482781.

The product of its digits is 432000, while the sum is 44.

The square root of 42965558 is about 6554.8118203347. The cubic root of 42965558 is about 350.2462430412.

The spelling of 42965558 in words is "forty-two million, nine hundred sixty-five thousand, five hundred fifty-eight".