40737905 has 16 divisors (see below), whose sum is σ = 52780224. Its totient is φ = 30006720.

The previous prime is 40737901. The next prime is 40737913. The reversal of 40737905 is 50973704.

It is not a de Polignac number, because 40737905 - 2² = 40737901 is a prime.

It is a Duffinian number.

It is a zygodrome in base 3.

It is not an unprimeable number, because it can be changed into a prime (40737901) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 44462 + ... + 45368.

It is an arithmetic number, because the mean of its divisors is an integer number (3298764).

Almost surely, 2^40737905 is an apocalyptic number.

It is an amenable number.

40737905 is a deficient number, since it is larger than the sum of its proper divisors (12042319).

40737905 is a wasteful number, since it uses less digits than its factorization.

40737905 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1616.

The product of its (nonzero) digits is 26460, while the sum is 35.

The square root of 40737905 is about 6382.6252435812. The cubic root of 40737905 is about 344.0853881460.

The spelling of 40737905 in words is "forty million, seven hundred thirty-seven thousand, nine hundred five".