40257825439 has 8 divisors (see below), whose sum is σ = 43373570240. Its totient is φ = 37144793376.

The previous prime is 40257825437. The next prime is 40257825449. The reversal of 40257825439 is 93452875204.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 40257825439 - 2¹ = 40257825437 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 40257825392 and 40257825401.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40257825437) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 647304 + ... + 706765.

It is an arithmetic number, because the mean of its divisors is an integer number (5421696280).

Almost surely, 2^40257825439 is an apocalyptic number.

40257825439 is a deficient number, since it is larger than the sum of its proper divisors (3115744801).

40257825439 is a wasteful number, since it uses less digits than its factorization.

40257825439 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1356369.

The product of its (nonzero) digits is 2419200, while the sum is 49.

The spelling of 40257825439 in words is "forty billion, two hundred fifty-seven million, eight hundred twenty-five thousand, four hundred thirty-nine".