42620558 has 4 divisors (see below), whose sum is σ = 63930840. Its totient is φ = 21310278.

The previous prime is 42620551. The next prime is 42620569. The reversal of 42620558 is 85502624.

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

It is a super-3 number, since 3×42620558³ (a number of 24 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42620551) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10655138 + ... + 10655141.

It is an arithmetic number, because the mean of its divisors is an integer number (15982710).

Almost surely, 2^42620558 is an apocalyptic number.

42620558 is a deficient number, since it is larger than the sum of its proper divisors (21310282).

42620558 is a wasteful number, since it uses less digits than its factorization.

42620558 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21310281.

The product of its (nonzero) digits is 19200, while the sum is 32.

The square root of 42620558 is about 6528.4422337951. The cubic root of 42620558 is about 349.3062666793.

The spelling of 42620558 in words is "forty-two million, six hundred twenty thousand, five hundred fifty-eight".