72036019 has 6 divisors (see below), whose sum is σ = 79180220. Its totient is φ = 65487180.

The previous prime is 72035993. The next prime is 72036061. The reversal of 72036019 is 91063027.

It is not a de Polignac number, because 72036019 - 2¹⁷ = 71904947 is a prime.

It is a super-2 number, since 2×72036019² = 10378376066736722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (72036119) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 297549 + ... + 297790.

Almost surely, 2^72036019 is an apocalyptic number.

72036019 is a deficient number, since it is larger than the sum of its proper divisors (7144201).

72036019 is a wasteful number, since it uses less digits than its factorization.

72036019 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 595361 (or 595350 counting only the distinct ones).

The product of its (nonzero) digits is 2268, while the sum is 28.

The square root of 72036019 is about 8487.4035487892. The cubic root of 72036019 is about 416.0861257669.

The spelling of 72036019 in words is "seventy-two million, thirty-six thousand, nineteen".