40674749 has 4 divisors (see below), whose sum is σ = 40694364. Its totient is φ = 40655136.

The previous prime is 40674743. The next prime is 40674769. The reversal of 40674749 is 94747604.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 3829849 + 36844900 = 1957^2 + 6070^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-40674749 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40674743) 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, 6272 + ... + 10985.

It is an arithmetic number, because the mean of its divisors is an integer number (10173591).

Almost surely, 2^40674749 is an apocalyptic number.

It is an amenable number.

40674749 is a deficient number, since it is larger than the sum of its proper divisors (19615).

40674749 is a wasteful number, since it uses less digits than its factorization.

40674749 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19614.

The product of its (nonzero) digits is 169344, while the sum is 41.

The square root of 40674749 is about 6377.6758305828. The cubic root of 40674749 is about 343.9074842475.

The spelling of 40674749 in words is "forty million, six hundred seventy-four thousand, seven hundred forty-nine".