42102426 has 8 divisors (see below), whose sum is σ = 84204864. Its totient is φ = 14034140.

The previous prime is 42102419. The next prime is 42102427. The reversal of 42102426 is 62420124.

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

42102426 is an admirable number.

It is a super-2 number, since 2×42102426² = 3545228550170952, which contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (42102427) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3508530 + ... + 3508541.

It is an arithmetic number, because the mean of its divisors is an integer number (10525608).

Almost surely, 2^42102426 is an apocalyptic number.

42102426 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

42102426 is a wasteful number, since it uses less digits than its factorization.

42102426 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7017076.

The product of its (nonzero) digits is 768, while the sum is 21.

The square root of 42102426 is about 6488.6382238494. The cubic root of 42102426 is about 347.8850029598.

The spelling of 42102426 in words is "forty-two million, one hundred two thousand, four hundred twenty-six".