40562290 has 8 divisors (see below), whose sum is σ = 73012140. Its totient is φ = 16224912.

The previous prime is 40562273. The next prime is 40562339. The reversal of 40562290 is 9226504.

It can be written as a sum of positive squares in 2 ways, for example, as 37908649 + 2653641 = 6157^2 + 1629^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2028105 + ... + 2028124.

Almost surely, 2^40562290 is an apocalyptic number.

40562290 is a deficient number, since it is larger than the sum of its proper divisors (32449850).

40562290 is a wasteful number, since it uses less digits than its factorization.

40562290 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4056236.

The product of its (nonzero) digits is 4320, while the sum is 28.

The square root of 40562290 is about 6368.8531149650. The cubic root of 40562290 is about 343.5902424585.

Adding to 40562290 its reverse (9226504), we get a palindrome (49788794).

It can be divided in two parts, 40 and 562290, that added together give a triangular number (562330 = T₁₀₆₀).

The spelling of 40562290 in words is "forty million, five hundred sixty-two thousand, two hundred ninety".