42903956 has 12 divisors (see below), whose sum is σ = 75189492. Its totient is φ = 21421248.

The previous prime is 42903911. The next prime is 42903983. The reversal of 42903956 is 65930924.

It can be written as a sum of positive squares in 2 ways, for example, as 19536400 + 23367556 = 4420^2 + 4834^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4385 + ... + 10248.

It is an arithmetic number, because the mean of its divisors is an integer number (6265791).

Almost surely, 2^42903956 is an apocalyptic number.

It is an amenable number.

42903956 is a deficient number, since it is larger than the sum of its proper divisors (32285536).

42903956 is a wasteful number, since it uses less digits than its factorization.

42903956 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15370 (or 15368 counting only the distinct ones).

The product of its (nonzero) digits is 58320, while the sum is 38.

The square root of 42903956 is about 6550.1111440952. Note that the first 4 decimals coincide. The cubic root of 42903956 is about 350.0787741058.

The spelling of 42903956 in words is "forty-two million, nine hundred three thousand, nine hundred fifty-six".