42164602 has 4 divisors (see below), whose sum is σ = 63246906. Its totient is φ = 21082300.

The previous prime is 42164597. The next prime is 42164611. The reversal of 42164602 is 20646124.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 36108081 + 6056521 = 6009^2 + 2461^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10541149 + ... + 10541152.

Almost surely, 2^42164602 is an apocalyptic number.

42164602 is a deficient number, since it is larger than the sum of its proper divisors (21082304).

42164602 is a wasteful number, since it uses less digits than its factorization.

42164602 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21082303.

The product of its (nonzero) digits is 2304, while the sum is 25.

The square root of 42164602 is about 6493.4276002740. The cubic root of 42164602 is about 348.0561685441.

The spelling of 42164602 in words is "forty-two million, one hundred sixty-four thousand, six hundred two".