42952405 has 8 divisors (see below), whose sum is σ = 51583032. Its totient is φ = 34335168.

The previous prime is 42952367. The next prime is 42952439. The reversal of 42952405 is 50425924.

It can be written as a sum of positive squares in 4 ways, for example, as 9381969 + 33570436 = 3063^2 + 5794^2 .

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 42952405 - 2¹¹ = 42950357 is a prime.

It is a Duffinian number.

It is a congruent number.

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, 6187 + ... + 11143.

It is an arithmetic number, because the mean of its divisors is an integer number (6447879).

Almost surely, 2^42952405 is an apocalyptic number.

It is an amenable number.

42952405 is a deficient number, since it is larger than the sum of its proper divisors (8630627).

42952405 is a wasteful number, since it uses less digits than its factorization.

42952405 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6695.

The product of its (nonzero) digits is 14400, while the sum is 31.

The square root of 42952405 is about 6553.8084347958. The cubic root of 42952405 is about 350.2104992252.

The spelling of 42952405 in words is "forty-two million, nine hundred fifty-two thousand, four hundred five".