40075489 has 2 divisors, whose sum is σ = 40075490. Its totient is φ = 40075488.

The previous prime is 40075481. The next prime is 40075501. The reversal of 40075489 is 98457004.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 34023889 + 6051600 = 5833^2 + 2460^2 .

It is a cyclic number.

It is not a de Polignac number, because 40075489 - 2³ = 40075481 is a prime.

It is not a weakly prime, because it can be changed into another prime (40075481) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20037744 + 20037745.

It is an arithmetic number, because the mean of its divisors is an integer number (20037745).

Almost surely, 2^40075489 is an apocalyptic number.

It is an amenable number.

40075489 is a deficient number, since it is larger than the sum of its proper divisors (1).

40075489 is an equidigital number, since it uses as much as digits as its factorization.

40075489 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 40320, while the sum is 37.

The square root of 40075489 is about 6330.5204367414. The cubic root of 40075489 is about 342.2101947612.

The spelling of 40075489 in words is "forty million, seventy-five thousand, four hundred eighty-nine".