42343577 has 16 divisors (see below), whose sum is σ = 44980752. Its totient is φ = 39813120.

The previous prime is 42343573. The next prime is 42343601. The reversal of 42343577 is 77534324.

It can be written as a sum of positive squares in 8 ways, for example, as 3455881 + 38887696 = 1859^2 + 6236^2 .

It is a cyclic number.

It is not a de Polignac number, because 42343577 - 2² = 42343573 is a prime.

It is not an unprimeable number, because it can be changed into a prime (42343573) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 164633 + ... + 164889.

It is an arithmetic number, because the mean of its divisors is an integer number (2811297).

Almost surely, 2^42343577 is an apocalyptic number.

It is an amenable number.

42343577 is a deficient number, since it is larger than the sum of its proper divisors (2637175).

42343577 is a wasteful number, since it uses less digits than its factorization.

42343577 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 428.

The product of its digits is 70560, while the sum is 35.

The square root of 42343577 is about 6507.1942494442. The cubic root of 42343577 is about 348.5479350872.

The spelling of 42343577 in words is "forty-two million, three hundred forty-three thousand, five hundred seventy-seven".