72205342 has 32 divisors (see below), whose sum is σ = 122056704. Its totient is φ = 31752000.

The previous prime is 72205337. The next prime is 72205351. The reversal of 72205342 is 24350227.

It is a super-2 number, since 2×72205342² = 10427222826673928, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 119842 + ... + 120442.

It is an arithmetic number, because the mean of its divisors is an integer number (3814272).

Almost surely, 2^72205342 is an apocalyptic number.

72205342 is a deficient number, since it is larger than the sum of its proper divisors (49851362).

72205342 is a wasteful number, since it uses less digits than its factorization.

72205342 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 784.

The product of its (nonzero) digits is 3360, while the sum is 25.

The square root of 72205342 is about 8497.3726527674. The cubic root of 72205342 is about 416.4118786489.

Adding to 72205342 its reverse (24350227), we get a palindrome (96555569).

The spelling of 72205342 in words is "seventy-two million, two hundred five thousand, three hundred forty-two".