72842371 has 12 divisors (see below), whose sum is σ = 89195880. Its totient is φ = 59149440.

The previous prime is 72842369. The next prime is 72842383. The reversal of 72842371 is 17324827.

It is not a de Polignac number, because 72842371 - 2¹ = 72842369 is a prime.

It is a super-2 number, since 2×72842371² = 10612022025803282, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (72842351) 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, 38190 + ... + 40051.

It is an arithmetic number, because the mean of its divisors is an integer number (7432990).

Almost surely, 2^72842371 is an apocalyptic number.

72842371 is a deficient number, since it is larger than the sum of its proper divisors (16353509).

72842371 is a wasteful number, since it uses less digits than its factorization.

72842371 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78274 (or 78267 counting only the distinct ones).

The product of its digits is 18816, while the sum is 34.

The square root of 72842371 is about 8534.7742207981. The cubic root of 72842371 is about 417.6328877661.

The spelling of 72842371 in words is "seventy-two million, eight hundred forty-two thousand, three hundred seventy-one".