42641602 has 4 divisors (see below), whose sum is σ = 63962406. Its totient is φ = 21320800.

The previous prime is 42641597. The next prime is 42641603. The reversal of 42641602 is 20614624.

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., 25010001 + 17631601 = 5001^2 + 4199^2 .

It is a super-3 number, since 3×42641602³ (a number of 24 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is not an unprimeable number, because it can be changed into a prime (42641603) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10660399 + ... + 10660402.

Almost surely, 2^42641602 is an apocalyptic number.

42641602 is a deficient number, since it is larger than the sum of its proper divisors (21320804).

42641602 is a wasteful number, since it uses less digits than its factorization.

42641602 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21320803.

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

The square root of 42641602 is about 6530.0537516930. The cubic root of 42641602 is about 349.3637474815.

The spelling of 42641602 in words is "forty-two million, six hundred forty-one thousand, six hundred two".