42402112 has 28 divisors (see below), whose sum is σ = 84547456. Its totient is φ = 21098880.

The previous prime is 42402103. The next prime is 42402121. The reversal of 42402112 is 21120424.

It is an interprime number because it is at equal distance from previous prime (42402103) and next prime (42402121).

It is a Harshad number since it is a multiple of its sum of digits (16).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12787 + ... + 15757.

It is an arithmetic number, because the mean of its divisors is an integer number (3019552).

Almost surely, 2^42402112 is an apocalyptic number.

It is an amenable number.

42402112 is a deficient number, since it is larger than the sum of its proper divisors (42145344).

42402112 is a wasteful number, since it uses less digits than its factorization.

42402112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3206 (or 3196 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 16.

The square root of 42402112 is about 6511.6904103313. The cubic root of 42402112 is about 348.7084699372.

Adding to 42402112 its reverse (21120424), we get a palindrome (63522536).

The spelling of 42402112 in words is "forty-two million, four hundred two thousand, one hundred twelve".