42072719 has 12 divisors (see below), whose sum is σ = 46019376. Its totient is φ = 38443392.

The previous prime is 42072691. The next prime is 42072731. The reversal of 42072719 is 91727024.

It is not a de Polignac number, because 42072719 - 2⁸ = 42072463 is a prime.

It is a super-2 number, since 2×42072719² = 3540227368105922, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42072799) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 16199 + ... + 18615.

It is an arithmetic number, because the mean of its divisors is an integer number (3834948).

Almost surely, 2^42072719 is an apocalyptic number.

42072719 is a deficient number, since it is larger than the sum of its proper divisors (3946657).

42072719 is a wasteful number, since it uses less digits than its factorization.

42072719 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2546 (or 2533 counting only the distinct ones).

The product of its (nonzero) digits is 7056, while the sum is 32.

The square root of 42072719 is about 6486.3486646957. The cubic root of 42072719 is about 347.8031624549.

The spelling of 42072719 in words is "forty-two million, seventy-two thousand, seven hundred nineteen".