40452619 has 2 divisors, whose sum is σ = 40452620. Its totient is φ = 40452618.

The previous prime is 40452617. The next prime is 40452631. The reversal of 40452619 is 91625404.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 40452619 - 2¹ = 40452617 is a prime.

It is a super-2 number, since 2×40452619² = 3272828767918322, which contains 22 as substring.

Together with 40452617, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (40452611) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20226309 + 20226310.

It is an arithmetic number, because the mean of its divisors is an integer number (20226310).

Almost surely, 2^40452619 is an apocalyptic number.

40452619 is a deficient number, since it is larger than the sum of its proper divisors (1).

40452619 is an equidigital number, since it uses as much as digits as its factorization.

40452619 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8640, while the sum is 31.

The square root of 40452619 is about 6360.2373383389. The cubic root of 40452619 is about 343.2803002470.

The spelling of 40452619 in words is "forty million, four hundred fifty-two thousand, six hundred nineteen".