42928101 has 6 divisors (see below), whose sum is σ = 62007270. Its totient is φ = 28618728.

The previous prime is 42928099. The next prime is 42928121. The reversal of 42928101 is 10182924.

It can be written as a sum of positive squares in only one way, i.e., 26936100 + 15992001 = 5190^2 + 3999^2 .

It is not a de Polignac number, because 42928101 - 2¹ = 42928099 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42928121) 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, 2384886 + ... + 2384903.

It is an arithmetic number, because the mean of its divisors is an integer number (10334545).

Almost surely, 2^42928101 is an apocalyptic number.

It is an amenable number.

42928101 is a deficient number, since it is larger than the sum of its proper divisors (19079169).

42928101 is a wasteful number, since it uses less digits than its factorization.

42928101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4769795 (or 4769792 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 27.

The square root of 42928101 is about 6551.9539833549. The cubic root of 42928101 is about 350.1444329063.

The spelling of 42928101 in words is "forty-two million, nine hundred twenty-eight thousand, one hundred one".