40925709 has 24 divisors (see below), whose sum is σ = 66648960. Its totient is φ = 24801480.

The previous prime is 40925707. The next prime is 40925747. The reversal of 40925709 is 90752904.

It is not a de Polignac number, because 40925709 - 2¹ = 40925707 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40925701) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2997 + ... + 9530.

It is an arithmetic number, because the mean of its divisors is an integer number (2777040).

Almost surely, 2^40925709 is an apocalyptic number.

It is an amenable number.

40925709 is a deficient number, since it is larger than the sum of its proper divisors (25723251).

40925709 is a wasteful number, since it uses less digits than its factorization.

40925709 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12558 (or 12541 counting only the distinct ones).

The product of its (nonzero) digits is 22680, while the sum is 36.

The square root of 40925709 is about 6397.3204546904. The cubic root of 40925709 is about 344.6133286005.

It can be divided in two parts, 4092 and 5709, that added together give a square (9801 = 99²).

The spelling of 40925709 in words is "forty million, nine hundred twenty-five thousand, seven hundred nine".