40484557 has 2 divisors, whose sum is σ = 40484558. Its totient is φ = 40484556.

The previous prime is 40484539. The next prime is 40484567. The reversal of 40484557 is 75548404.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 39363076 + 1121481 = 6274^2 + 1059^2 .

It is a cyclic number.

It is not a de Polignac number, because 40484557 - 2¹¹ = 40482509 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40484567) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20242278 + 20242279.

It is an arithmetic number, because the mean of its divisors is an integer number (20242279).

Almost surely, 2^40484557 is an apocalyptic number.

It is an amenable number.

40484557 is a deficient number, since it is larger than the sum of its proper divisors (1).

40484557 is an equidigital number, since it uses as much as digits as its factorization.

40484557 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 89600, while the sum is 37.

The square root of 40484557 is about 6362.7475983257. The cubic root of 40484557 is about 343.3706182736.

It can be divided in two parts, 40484 and 557, that added together give a triangular number (41041 = T₂₈₆).

The spelling of 40484557 in words is "forty million, four hundred eighty-four thousand, five hundred fifty-seven".