485139790 has 16 divisors (see below), whose sum is σ = 884306880. Its totient is φ = 191599200.

The previous prime is 485139779. The next prime is 485139791. The reversal of 485139790 is 97931584.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 485139790.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (485139791) 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, 306261 + ... + 307840.

It is an arithmetic number, because the mean of its divisors is an integer number (55269180).

Almost surely, 2^485139790 is an apocalyptic number.

485139790 is a deficient number, since it is larger than the sum of its proper divisors (399167090).

485139790 is a wasteful number, since it uses less digits than its factorization.

485139790 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 614187.

The product of its (nonzero) digits is 272160, while the sum is 46.

The square root of 485139790 is about 22025.8890853468. The cubic root of 485139790 is about 785.7582784813.

The spelling of 485139790 in words is "four hundred eighty-five million, one hundred thirty-nine thousand, seven hundred ninety".