42819402 has 8 divisors (see below), whose sum is σ = 85638816. Its totient is φ = 14273132.

The previous prime is 42819383. The next prime is 42819433. The reversal of 42819402 is 20491824.

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

42819402 is an admirable number.

It is a self number, because there is not a number n which added to its sum of digits gives 42819402.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3568278 + ... + 3568289.

It is an arithmetic number, because the mean of its divisors is an integer number (10704852).

Almost surely, 2^42819402 is an apocalyptic number.

42819402 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.

42819402 is a wasteful number, since it uses less digits than its factorization.

42819402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7136572.

The product of its (nonzero) digits is 4608, while the sum is 30.

The square root of 42819402 is about 6543.6535666247. The cubic root of 42819402 is about 349.8486474844.

The spelling of 42819402 in words is "forty-two million, eight hundred nineteen thousand, four hundred two".