42203988 has 36 divisors (see below), whose sum is σ = 111322848. Its totient is φ = 13456080.

The previous prime is 42203977. The next prime is 42204017. The reversal of 42203988 is 88930224.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 24658 + ... + 26313.

Almost surely, 2^42203988 is an apocalyptic number.

It is an amenable number.

42203988 is an abundant number, since it is smaller than the sum of its proper divisors (69118860).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

42203988 is a wasteful number, since it uses less digits than its factorization.

42203988 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51004 (or 50999 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 36.

The square root of 42203988 is about 6496.4596512254. The cubic root of 42203988 is about 348.1645080314.

The spelling of 42203988 in words is "forty-two million, two hundred three thousand, nine hundred eighty-eight".