72754736 has 20 divisors (see below), whose sum is σ = 145824000. Its totient is φ = 35122752.

The previous prime is 72754733. The next prime is 72754739. The reversal of 72754736 is 63745727.

It is an interprime number because it is at equal distance from previous prime (72754733) and next prime (72754739).

It is a super-2 number, since 2×72754736² = 10586503220859392, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 72754693 and 72754702.

It is not an unprimeable number, because it can be changed into a prime (72754733) 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, 77936 + ... + 78863.

It is an arithmetic number, because the mean of its divisors is an integer number (7291200).

Almost surely, 2^72754736 is an apocalyptic number.

It is an amenable number.

72754736 is an abundant number, since it is smaller than the sum of its proper divisors (73069264).

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

72754736 is a wasteful number, since it uses less digits than its factorization.

72754736 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 156836 (or 156830 counting only the distinct ones).

The product of its digits is 246960, while the sum is 41.

The square root of 72754736 is about 8529.6386793345. The cubic root of 72754736 is about 417.4653390136.

Subtracting from 72754736 its reverse (63745727), we obtain a palindrome (9009009).

The spelling of 72754736 in words is "seventy-two million, seven hundred fifty-four thousand, seven hundred thirty-six".