42005955 has 8 divisors (see below), whose sum is σ = 67209552. Its totient is φ = 22403168.

The previous prime is 42005933. The next prime is 42005983. The reversal of 42005955 is 55950024.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 42005955 - 2¹³ = 41997763 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1400184 + ... + 1400213.

It is an arithmetic number, because the mean of its divisors is an integer number (8401194).

Almost surely, 2^42005955 is an apocalyptic number.

42005955 is a deficient number, since it is larger than the sum of its proper divisors (25203597).

42005955 is a wasteful number, since it uses less digits than its factorization.

42005955 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2800405.

The product of its (nonzero) digits is 9000, while the sum is 30.

The square root of 42005955 is about 6481.2001203481. The cubic root of 42005955 is about 347.6190920763.

Adding to 42005955 its reverse (55950024), we get a palindrome (97955979).

The spelling of 42005955 in words is "forty-two million, five thousand, nine hundred fifty-five".