73426944 has 192 divisors, whose sum is σ = 224078400. Its totient is φ = 21233664.

The previous prime is 73426939. The next prime is 73426957. The reversal of 73426944 is 44962437.

It is a tau number, because it is divible by the number of its divisors (192).

It is a super-2 number, since 2×73426944² = 10783032210358272, which contains 22 as substring.

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, 1984494 + ... + 1984530.

It is an arithmetic number, because the mean of its divisors is an integer number (1167075).

Almost surely, 2^73426944 is an apocalyptic number.

73426944 is a gapful number since it is divisible by the number (74) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 73426944, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (112039200).

73426944 is an abundant number, since it is smaller than the sum of its proper divisors (150651456).

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

73426944 is a wasteful number, since it uses less digits than its factorization.

73426944 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 98 (or 78 counting only the distinct ones).

The product of its digits is 145152, while the sum is 39.

The square root of 73426944 is about 8568.9523280270. The cubic root of 73426944 is about 418.7471052299.

The spelling of 73426944 in words is "seventy-three million, four hundred twenty-six thousand, nine hundred forty-four".