40285149 has 8 divisors (see below), whose sum is σ = 56540640. Its totient is φ = 25443216.

The previous prime is 40285103. The next prime is 40285159. The reversal of 40285149 is 94158204.

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

It is not a de Polignac number, because 40285149 - 2⁹ = 40284637 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40285159) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 353322 + ... + 353435.

It is an arithmetic number, because the mean of its divisors is an integer number (7067580).

Almost surely, 2^40285149 is an apocalyptic number.

It is an amenable number.

40285149 is a deficient number, since it is larger than the sum of its proper divisors (16255491).

40285149 is a wasteful number, since it uses less digits than its factorization.

40285149 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 706779.

The product of its (nonzero) digits is 11520, while the sum is 33.

The square root of 40285149 is about 6347.0582949899. The cubic root of 40285149 is about 342.8059290816.

The spelling of 40285149 in words is "forty million, two hundred eighty-five thousand, one hundred forty-nine".