42941557 has 4 divisors (see below), whose sum is σ = 43669440. Its totient is φ = 42213676.

The previous prime is 42941543. The next prime is 42941611. The reversal of 42941557 is 75514924.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 42941557 - 2¹¹ = 42939509 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42941527) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 363853 + ... + 363970.

It is an arithmetic number, because the mean of its divisors is an integer number (10917360).

Almost surely, 2^42941557 is an apocalyptic number.

It is an amenable number.

42941557 is a deficient number, since it is larger than the sum of its proper divisors (727883).

42941557 is an equidigital number, since it uses as much as digits as its factorization.

42941557 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 727882.

The product of its digits is 50400, while the sum is 37.

The square root of 42941557 is about 6552.9807721372. The cubic root of 42941557 is about 350.1810138497.

The spelling of 42941557 in words is "forty-two million, nine hundred forty-one thousand, five hundred fifty-seven".