72331346 has 8 divisors (see below), whose sum is σ = 109804464. Its totient is φ = 35729860.

The previous prime is 72331333. The next prime is 72331381. The reversal of 72331346 is 64313327.

It is a happy number.

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

It is a super-2 number, since 2×72331346² = 10463647228343432, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 217700 + ... + 218031.

It is an arithmetic number, because the mean of its divisors is an integer number (13725558).

Almost surely, 2^72331346 is an apocalyptic number.

72331346 is a deficient number, since it is larger than the sum of its proper divisors (37473118).

72331346 is a wasteful number, since it uses less digits than its factorization.

72331346 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 435816.

The product of its digits is 9072, while the sum is 29.

The square root of 72331346 is about 8504.7837127113. The cubic root of 72331346 is about 416.6539617104.

The spelling of 72331346 in words is "seventy-two million, three hundred thirty-one thousand, three hundred forty-six".