74019919 has 8 divisors (see below), whose sum is σ = 77544000. Its totient is φ = 70560672.

The previous prime is 74019893. The next prime is 74019929. The reversal of 74019919 is 91991047.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-74019919 is a prime.

It is a super-2 number, since 2×74019919² = 10957896817533122, 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 (74019929) 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, 13864 + ... + 18445.

It is an arithmetic number, because the mean of its divisors is an integer number (9693000).

Almost surely, 2^74019919 is an apocalyptic number.

74019919 is a gapful number since it is divisible by the number (79) formed by its first and last digit.

74019919 is a deficient number, since it is larger than the sum of its proper divisors (3524081).

74019919 is a wasteful number, since it uses less digits than its factorization.

74019919 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32417.

The product of its (nonzero) digits is 20412, while the sum is 40.

The square root of 74019919 is about 8603.4829575004. The cubic root of 74019919 is about 419.8713116698.

The spelling of 74019919 in words is "seventy-four million, nineteen thousand, nine hundred nineteen".