42869601 has 16 divisors (see below), whose sum is σ = 64077120. Its totient is φ = 28324800.

The previous prime is 42869579. The next prime is 42869611. The reversal of 42869601 is 10696824.

Added to its reverse (10696824) it gives a triangular number (53566425 = T₁₀₃₅₀).

42869601 is a `hidden beast` number, since 42 + 8 + 6 + 9 + 601 = 666.

It is not a de Polignac number, because 42869601 - 2⁶ = 42869537 is a prime.

It is not an unprimeable number, because it can be changed into a prime (42869611) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3975 + ... + 10076.

It is an arithmetic number, because the mean of its divisors is an integer number (4004820).

Almost surely, 2^42869601 is an apocalyptic number.

It is an amenable number.

42869601 is a deficient number, since it is larger than the sum of its proper divisors (21207519).

42869601 is a wasteful number, since it uses less digits than its factorization.

42869601 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14173 (or 14167 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 36.

The square root of 42869601 is about 6547.4881443192. The cubic root of 42869601 is about 349.9853082268.

Adding to 42869601 its reverse (10696824), we get a triangular number (53566425 = T₁₀₃₅₀).

The spelling of 42869601 in words is "forty-two million, eight hundred sixty-nine thousand, six hundred one".