40740736 has 16 divisors (see below), whose sum is σ = 81163440. Its totient is φ = 20370304.

The previous prime is 40740719. The next prime is 40740767. The reversal of 40740736 is 63704704.

It is a tau number, because it is divible by the number of its divisors (16).

It is a hoax number, since the sum of its digits (31) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 40740698 and 40740707.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 159016 + ... + 159271.

It is an arithmetic number, because the mean of its divisors is an integer number (5072715).

Almost surely, 2^40740736 is an apocalyptic number.

It is an amenable number.

40740736 is a deficient number, since it is larger than the sum of its proper divisors (40422704).

40740736 is an equidigital number, since it uses as much as digits as its factorization.

40740736 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 318301 (or 318289 counting only the distinct ones).

The product of its (nonzero) digits is 14112, while the sum is 31.

The square root of 40740736 is about 6382.8470136766. The cubic root of 40740736 is about 344.0933584721.

The spelling of 40740736 in words is "forty million, seven hundred forty thousand, seven hundred thirty-six".