538890407 has 8 divisors (see below), whose sum is σ = 618821760. Its totient is φ = 464115960.

The previous prime is 538890397. The next prime is 538890421. The reversal of 538890407 is 704098835.

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

It is not a de Polignac number, because 538890407 - 2⁶ = 538890343 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (538890467) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1289003 + ... + 1289420.

It is an arithmetic number, because the mean of its divisors is an integer number (77352720).

Almost surely, 2^538890407 is an apocalyptic number.

538890407 is a deficient number, since it is larger than the sum of its proper divisors (79931353).

538890407 is a wasteful number, since it uses less digits than its factorization.

538890407 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2578453.

The product of its (nonzero) digits is 241920, while the sum is 44.

The square root of 538890407 is about 23214.0131601582. The cubic root of 538890407 is about 813.7671434791.

The spelling of 538890407 in words is "five hundred thirty-eight million, eight hundred ninety thousand, four hundred seven".