42012884 has 6 divisors (see below), whose sum is σ = 73522554. Its totient is φ = 21006440.

The previous prime is 42012863. The next prime is 42012907. The reversal of 42012884 is 48821024.

It can be written as a sum of positive squares in only one way, i.e., 41964484 + 48400 = 6478^2 + 220^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5251607 + ... + 5251614.

It is an arithmetic number, because the mean of its divisors is an integer number (12253759).

Almost surely, 2^42012884 is an apocalyptic number.

It is an amenable number.

42012884 is a deficient number, since it is larger than the sum of its proper divisors (31509670).

42012884 is a wasteful number, since it uses less digits than its factorization.

42012884 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10503225 (or 10503223 counting only the distinct ones).

The product of its (nonzero) digits is 4096, while the sum is 29.

The square root of 42012884 is about 6481.7346443680. The cubic root of 42012884 is about 347.6382046066.

The spelling of 42012884 in words is "forty-two million, twelve thousand, eight hundred eighty-four".