40053889 has 2 divisors, whose sum is σ = 40053890. Its totient is φ = 40053888.

The previous prime is 40053877. The next prime is 40053907. The reversal of 40053889 is 98835004.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 25553025 + 14500864 = 5055^2 + 3808^2 .

It is a cyclic number.

It is not a de Polignac number, because 40053889 - 2¹¹ = 40051841 is a prime.

It is not a weakly prime, because it can be changed into another prime (40053809) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20026944 + 20026945.

It is an arithmetic number, because the mean of its divisors is an integer number (20026945).

Almost surely, 2^40053889 is an apocalyptic number.

It is an amenable number.

40053889 is a deficient number, since it is larger than the sum of its proper divisors (1).

40053889 is an equidigital number, since it uses as much as digits as its factorization.

40053889 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 34560, while the sum is 37.

The square root of 40053889 is about 6328.8141859277. The cubic root of 40053889 is about 342.1487019070.

It can be divided in two parts, 400 and 53889, that added together give a square (54289 = 233²).

The spelling of 40053889 in words is "forty million, fifty-three thousand, eight hundred eighty-nine".