40495590 has 24 divisors (see below), whose sum is σ = 105288768. Its totient is φ = 10798800.

The previous prime is 40495573. The next prime is 40495597. The reversal of 40495590 is 9559404.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40495597) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 224886 + ... + 225065.

It is an arithmetic number, because the mean of its divisors is an integer number (4387032).

Almost surely, 2^40495590 is an apocalyptic number.

40495590 is an abundant number, since it is smaller than the sum of its proper divisors (64793178).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

40495590 is a wasteful number, since it uses less digits than its factorization.

40495590 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 449964 (or 449961 counting only the distinct ones).

The product of its (nonzero) digits is 32400, while the sum is 36.

The square root of 40495590 is about 6363.6145389236. The cubic root of 40495590 is about 343.4018076474.

The spelling of 40495590 in words is "forty million, four hundred ninety-five thousand, five hundred ninety".