42102502 has 8 divisors (see below), whose sum is σ = 68011776. Its totient is φ = 19431912.

The previous prime is 42102493. The next prime is 42102509. The reversal of 42102502 is 20520124.

42102502 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42102509) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 809638 + ... + 809689.

It is an arithmetic number, because the mean of its divisors is an integer number (8501472).

Almost surely, 2^42102502 is an apocalyptic number.

42102502 is a deficient number, since it is larger than the sum of its proper divisors (25909274).

42102502 is a wasteful number, since it uses less digits than its factorization.

42102502 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1619342.

The product of its (nonzero) digits is 160, while the sum is 16.

The square root of 42102502 is about 6488.6440802374. The cubic root of 42102502 is about 347.8852122846.

Adding to 42102502 its reverse (20520124), we get a palindrome (62622626).

The spelling of 42102502 in words is "forty-two million, one hundred two thousand, five hundred two".