42908361 has 4 divisors (see below), whose sum is σ = 57211152. Its totient is φ = 28605572.

The previous prime is 42908351. The next prime is 42908377. The reversal of 42908361 is 16380924.

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 42908361 - 2⁵ = 42908329 is a prime.

It is a super-2 number, since 2×42908361² = 3682254887412642, which contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (42908351) 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, 7151391 + ... + 7151396.

It is an arithmetic number, because the mean of its divisors is an integer number (14302788).

Almost surely, 2^42908361 is an apocalyptic number.

It is an amenable number.

42908361 is a deficient number, since it is larger than the sum of its proper divisors (14302791).

42908361 is a wasteful number, since it uses less digits than its factorization.

42908361 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14302790.

The product of its (nonzero) digits is 10368, while the sum is 33.

The square root of 42908361 is about 6550.4473893010. The cubic root of 42908361 is about 350.0907546966.

The spelling of 42908361 in words is "forty-two million, nine hundred eight thousand, three hundred sixty-one".