42349868 has 12 divisors (see below), whose sum is σ = 80849832. Its totient is φ = 19249920.

The previous prime is 42349861. The next prime is 42349933. The reversal of 42349868 is 86894324.

It is a super-2 number, since 2×42349868² = 3587022639234848, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (44), and also a Moran number because the ratio is a prime number: 962497 = 42349868 / (4 + 2 + 3 + 4 + 9 + 8 + 6 + 8).

It is not an unprimeable number, because it can be changed into a prime (42349861) by changing a digit.

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 in 3 ways as a sum of consecutive naturals, for example, 481205 + ... + 481292.

It is an arithmetic number, because the mean of its divisors is an integer number (6737486).

Almost surely, 2^42349868 is an apocalyptic number.

42349868 is the 3479-th centered heptagonal number.

It is an amenable number.

42349868 is a deficient number, since it is larger than the sum of its proper divisors (38499964).

42349868 is a wasteful number, since it uses less digits than its factorization.

42349868 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 962512 (or 962510 counting only the distinct ones).

The product of its digits is 331776, while the sum is 44.

The square root of 42349868 is about 6507.6776195506. The cubic root of 42349868 is about 348.5651955285.

The spelling of 42349868 in words is "forty-two million, three hundred forty-nine thousand, eight hundred sixty-eight".