42093928 has 8 divisors (see below), whose sum is σ = 78926130. Its totient is φ = 21046960.

The previous prime is 42093913. The next prime is 42093943. The reversal of 42093928 is 82939024.

It is an interprime number because it is at equal distance from previous prime (42093913) and next prime (42093943).

It can be written as a sum of positive squares in only one way, i.e., 38415204 + 3678724 = 6198^2 + 1918^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2630863 + ... + 2630878.

Almost surely, 2^42093928 is an apocalyptic number.

It is an amenable number.

42093928 is a deficient number, since it is larger than the sum of its proper divisors (36832202).

42093928 is a wasteful number, since it uses less digits than its factorization.

42093928 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5261747 (or 5261743 counting only the distinct ones).

The product of its (nonzero) digits is 31104, while the sum is 37.

The square root of 42093928 is about 6487.9833538627. The cubic root of 42093928 is about 347.8615955543.

The spelling of 42093928 in words is "forty-two million, ninety-three thousand, nine hundred twenty-eight".