42012719 has 8 divisors (see below), whose sum is σ = 49563648. Its totient is φ = 34849080.

The previous prime is 42012703. The next prime is 42012731. The reversal of 42012719 is 91721024.

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

It is not a de Polignac number, because 42012719 - 2⁴ = 42012703 is a prime.

It is a super-2 number, since 2×42012719² = 3530137115545922, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42012119) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 96587 + ... + 97020.

It is an arithmetic number, because the mean of its divisors is an integer number (6195456).

Almost surely, 2^42012719 is an apocalyptic number.

42012719 is a deficient number, since it is larger than the sum of its proper divisors (7550929).

42012719 is a wasteful number, since it uses less digits than its factorization.

42012719 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 193645.

The product of its (nonzero) digits is 1008, while the sum is 26.

The square root of 42012719 is about 6481.7219162812. The cubic root of 42012719 is about 347.6377495051.

The spelling of 42012719 in words is "forty-two million, twelve thousand, seven hundred nineteen".