3540044639 has 2 divisors, whose sum is σ = 3540044640. Its totient is φ = 3540044638.

The previous prime is 3540044611. The next prime is 3540044681. The reversal of 3540044639 is 9364400453.

It is a happy number.

3540044639 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 3540044639 - 2⁸ = 3540044383 is a prime.

It is a super-2 number, since 2×3540044639² = 25063832092225280642, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3540047639) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1770022319 + 1770022320.

It is an arithmetic number, because the mean of its divisors is an integer number (1770022320).

Almost surely, 2^3540044639 is an apocalyptic number.

3540044639 is a deficient number, since it is larger than the sum of its proper divisors (1).

3540044639 is an equidigital number, since it uses as much as digits as its factorization.

3540044639 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 155520, while the sum is 38.

The square root of 3540044639 is about 59498.2742522840. The cubic root of 3540044639 is about 1524.0629756023.

The spelling of 3540044639 in words is "three billion, five hundred forty million, forty-four thousand, six hundred thirty-nine".