40234490 has 16 divisors (see below), whose sum is σ = 72825480. Its totient is φ = 16004160.

The previous prime is 40234487. The next prime is 40234501. The reversal of 40234490 is 9443204.

It can be written as a sum of positive squares in 4 ways, for example, as 14661241 + 25573249 = 3829^2 + 5057^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9305 + ... + 12924.

Almost surely, 2^40234490 is an apocalyptic number.

40234490 is a deficient number, since it is larger than the sum of its proper divisors (32590990).

40234490 is a wasteful number, since it uses less digits than its factorization.

40234490 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22417.

The product of its (nonzero) digits is 3456, while the sum is 26.

The square root of 40234490 is about 6343.0662932055. The cubic root of 40234490 is about 342.6621747827.

Adding to 40234490 its reverse (9443204), we get a palindrome (49677694).

The spelling of 40234490 in words is "forty million, two hundred thirty-four thousand, four hundred ninety".