495309940 has 24 divisors (see below), whose sum is σ = 1073705472. Its totient is φ = 191732640.

The previous prime is 495309929. The next prime is 495309961. The reversal of 495309940 is 49903594.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 398824 + ... + 400063.

It is an arithmetic number, because the mean of its divisors is an integer number (44737728).

Almost surely, 2^495309940 is an apocalyptic number.

It is an amenable number.

495309940 is an abundant number, since it is smaller than the sum of its proper divisors (578395532).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

495309940 is a wasteful number, since it uses less digits than its factorization.

495309940 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 798927 (or 798925 counting only the distinct ones).

The product of its (nonzero) digits is 174960, while the sum is 43.

The square root of 495309940 is about 22255.5597548118. The cubic root of 495309940 is about 791.2110571175.

The spelling of 495309940 in words is "four hundred ninety-five million, three hundred nine thousand, nine hundred forty".