40621522 has 4 divisors (see below), whose sum is σ = 60932286. Its totient is φ = 20310760.

The previous prime is 40621463. The next prime is 40621549. The reversal of 40621522 is 22512604.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 40462321 + 159201 = 6361^2 + 399^2 .

It is a Smith number, since the sum of its digits (22) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a junction number, because it is equal to n+sod(n) for n = 40621493 and 40621502.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10155379 + ... + 10155382.

Almost surely, 2^40621522 is an apocalyptic number.

40621522 is a deficient number, since it is larger than the sum of its proper divisors (20310764).

40621522 is a wasteful number, since it uses less digits than its factorization.

40621522 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20310763.

The product of its (nonzero) digits is 960, while the sum is 22.

The square root of 40621522 is about 6373.5015493840. The cubic root of 40621522 is about 343.7574062537.

The spelling of 40621522 in words is "forty million, six hundred twenty-one thousand, five hundred twenty-two".