42402111 has 8 divisors (see below), whose sum is σ = 58064304. Its totient is φ = 27504000.

The previous prime is 42402103. The next prime is 42402121. The reversal of 42402111 is 11120424.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 42402111 - 2³ = 42402103 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42402121) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 190890 + ... + 191111.

It is an arithmetic number, because the mean of its divisors is an integer number (7258038).

Almost surely, 2^42402111 is an apocalyptic number.

42402111 is a deficient number, since it is larger than the sum of its proper divisors (15662193).

42402111 is a wasteful number, since it uses less digits than its factorization.

42402111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 382041.

The product of its (nonzero) digits is 64, while the sum is 15.

The square root of 42402111 is about 6511.6903335463. The cubic root of 42402111 is about 348.7084671960.

Adding to 42402111 its reverse (11120424), we get a palindrome (53522535).

The spelling of 42402111 in words is "forty-two million, four hundred two thousand, one hundred eleven".