42299956 has 6 divisors (see below), whose sum is σ = 74024930. Its totient is φ = 21149976.

The previous prime is 42299941. The next prime is 42299963. The reversal of 42299956 is 65999224.

It can be written as a sum of positive squares in only one way, i.e., 37822500 + 4477456 = 6150^2 + 2116^2 .

It is a congruent number.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 5287491 + ... + 5287498.

Almost surely, 2^42299956 is an apocalyptic number.

It is an amenable number.

42299956 is a deficient number, since it is larger than the sum of its proper divisors (31724974).

42299956 is a wasteful number, since it uses less digits than its factorization.

42299956 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10574993 (or 10574991 counting only the distinct ones).

The product of its digits is 349920, while the sum is 46.

The square root of 42299956 is about 6503.8416339883. The cubic root of 42299956 is about 348.4282063157.

The spelling of 42299956 in words is "forty-two million, two hundred ninety-nine thousand, nine hundred fifty-six".