40746728 has 16 divisors (see below), whose sum is σ = 83345760. Its totient is φ = 18521200.

The previous prime is 40746709. The next prime is 40746749. The reversal of 40746728 is 82764704.

It is a junction number, because it is equal to n+sod(n) for n = 40746691 and 40746700.

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, 231428 + ... + 231603.

It is an arithmetic number, because the mean of its divisors is an integer number (5209110).

Almost surely, 2^40746728 is an apocalyptic number.

It is an amenable number.

40746728 is an abundant number, since it is smaller than the sum of its proper divisors (42599032).

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

40746728 is a wasteful number, since it uses less digits than its factorization.

40746728 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 463048 (or 463044 counting only the distinct ones).

The product of its (nonzero) digits is 75264, while the sum is 38.

The square root of 40746728 is about 6383.3163794379. The cubic root of 40746728 is about 344.1102269804.

The spelling of 40746728 in words is "forty million, seven hundred forty-six thousand, seven hundred twenty-eight".