40352590 has 8 divisors (see below), whose sum is σ = 72634680. Its totient is φ = 16141032.

The previous prime is 40352581. The next prime is 40352591. The reversal of 40352590 is 9525304.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40352591) 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, 2017620 + ... + 2017639.

It is an arithmetic number, because the mean of its divisors is an integer number (9079335).

Almost surely, 2^40352590 is an apocalyptic number.

40352590 is a deficient number, since it is larger than the sum of its proper divisors (32282090).

40352590 is a wasteful number, since it uses less digits than its factorization.

40352590 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4035266.

The product of its (nonzero) digits is 5400, while the sum is 28.

The square root of 40352590 is about 6352.3688494923. The cubic root of 40352590 is about 342.9971185233.

Adding to 40352590 its reverse (9525304), we get a palindrome (49877894).

The spelling of 40352590 in words is "forty million, three hundred fifty-two thousand, five hundred ninety".