72374519 has 6 divisors (see below), whose sum is σ = 84190824. Its totient is φ = 62035260.

The previous prime is 72374503. The next prime is 72374527. The reversal of 72374519 is 91547327.

It is not a de Polignac number, because 72374519 - 2⁴ = 72374503 is a prime.

It is a super-2 number, since 2×72374519² = 10476142000962722, 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 (72374569) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 738467 + ... + 738564.

It is an arithmetic number, because the mean of its divisors is an integer number (14031804).

Almost surely, 2^72374519 is an apocalyptic number.

72374519 is a deficient number, since it is larger than the sum of its proper divisors (11816305).

72374519 is a wasteful number, since it uses less digits than its factorization.

72374519 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1477045 (or 1477038 counting only the distinct ones).

The product of its digits is 52920, while the sum is 38.

The square root of 72374519 is about 8507.3214938663. The cubic root of 72374519 is about 416.7368424380.

The spelling of 72374519 in words is "seventy-two million, three hundred seventy-four thousand, five hundred nineteen".