72122046 has 8 divisors (see below), whose sum is σ = 144244104. Its totient is φ = 24040680.

The previous prime is 72122033. The next prime is 72122047. The reversal of 72122046 is 64022127.

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

72122046 is an admirable number.

It is a super-2 number, since 2×72122046² = 10403179038452232, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72122047) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6010165 + ... + 6010176.

It is an arithmetic number, because the mean of its divisors is an integer number (18030513).

Almost surely, 2^72122046 is an apocalyptic number.

72122046 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

72122046 is a wasteful number, since it uses less digits than its factorization.

72122046 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12020346.

The product of its (nonzero) digits is 1344, while the sum is 24.

The square root of 72122046 is about 8492.4699587340. The cubic root of 72122046 is about 416.2516929473.

The spelling of 72122046 in words is "seventy-two million, one hundred twenty-two thousand, forty-six".