42215932 has 18 divisors (see below), whose sum is σ = 81205544. Its totient is φ = 19188840.

The previous prime is 42215923. The next prime is 42215933. The reversal of 42215932 is 23951224.

It is a self number, because there is not a number n which added to its sum of digits gives 42215932.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42215933) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 43128 + ... + 44095.

Almost surely, 2^42215932 is an apocalyptic number.

It is an amenable number.

42215932 is a deficient number, since it is larger than the sum of its proper divisors (38989612).

42215932 is a wasteful number, since it uses less digits than its factorization.

42215932 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 87249 (or 87236 counting only the distinct ones).

The product of its digits is 4320, while the sum is 28.

The square root of 42215932 is about 6497.3788561234. The cubic root of 42215932 is about 348.1973491984.

It can be divided in two parts, 4221 and 5932, that added together give a triangular number (10153 = T₁₄₂).

The spelling of 42215932 in words is "forty-two million, two hundred fifteen thousand, nine hundred thirty-two".