40049545 has 8 divisors (see below), whose sum is σ = 48123720. Its totient is φ = 31996800.

The previous prime is 40049539. The next prime is 40049563. The reversal of 40049545 is 54594004.

It can be written as a sum of positive squares in 4 ways, for example, as 21799561 + 18249984 = 4669^2 + 4272^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 40049545 - 2⁹ = 40049033 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 906 + ... + 8995.

It is an arithmetic number, because the mean of its divisors is an integer number (6015465).

Almost surely, 2^40049545 is an apocalyptic number.

It is an amenable number.

40049545 is a deficient number, since it is larger than the sum of its proper divisors (8074175).

40049545 is an equidigital number, since it uses as much as digits as its factorization.

40049545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10715.

The product of its (nonzero) digits is 14400, while the sum is 31.

The square root of 40049545 is about 6328.4709843690. The cubic root of 40049545 is about 342.1363323407.

The spelling of 40049545 in words is "forty million, forty-nine thousand, five hundred forty-five".