40621375 has 16 divisors (see below), whose sum is σ = 52071552. Its totient is φ = 31615200.

The previous prime is 40621367. The next prime is 40621379. The reversal of 40621375 is 57312604.

It is not a de Polignac number, because 40621375 - 2³ = 40621367 is a prime.

It is a super-2 number, since 2×40621375² = 3300192213781250, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40621379) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 234 + ... + 9016.

It is an arithmetic number, because the mean of its divisors is an integer number (3254472).

Almost surely, 2^40621375 is an apocalyptic number.

40621375 is a deficient number, since it is larger than the sum of its proper divisors (11450177).

40621375 is an equidigital number, since it uses as much as digits as its factorization.

40621375 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8835 (or 8825 counting only the distinct ones).

The product of its (nonzero) digits is 5040, while the sum is 28.

The square root of 40621375 is about 6373.4900172511. The cubic root of 40621375 is about 343.7569915933.

Adding to 40621375 its reverse (57312604), we get a palindrome (97933979).

The spelling of 40621375 in words is "forty million, six hundred twenty-one thousand, three hundred seventy-five".