72042433 has 8 divisors (see below), whose sum is σ = 76320320. Its totient is φ = 67813200.

The previous prime is 72042431. The next prime is 72042473. The reversal of 72042433 is 33424027.

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

It is a cyclic number.

It is not a de Polignac number, because 72042433 - 2¹ = 72042431 is a prime.

It is a super-2 number, since 2×72042433² = 10380224305118978, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 72042398 and 72042407.

It is not an unprimeable number, because it can be changed into a prime (72042431) 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, 9093 + ... + 15058.

It is an arithmetic number, because the mean of its divisors is an integer number (9540040).

Almost surely, 2^72042433 is an apocalyptic number.

It is an amenable number.

72042433 is a deficient number, since it is larger than the sum of its proper divisors (4277887).

72042433 is a wasteful number, since it uses less digits than its factorization.

72042433 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24327.

The product of its (nonzero) digits is 4032, while the sum is 25.

The square root of 72042433 is about 8487.7813944517. The cubic root of 72042433 is about 416.0984746688.

The spelling of 72042433 in words is "seventy-two million, forty-two thousand, four hundred thirty-three".