499421915 has 8 divisors (see below), whose sum is σ = 610614288. Its totient is φ = 391998880.

The previous prime is 499421887. The next prime is 499421933. The reversal of 499421915 is 519124994.

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

It is not a de Polignac number, because 499421915 - 2⁶ = 499421851 is a prime.

It is a Duffinian 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, 942041 + ... + 942570.

It is an arithmetic number, because the mean of its divisors is an integer number (76326786).

Almost surely, 2^499421915 is an apocalyptic number.

499421915 is a deficient number, since it is larger than the sum of its proper divisors (111192373).

499421915 is a wasteful number, since it uses less digits than its factorization.

499421915 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1884669.

The product of its digits is 116640, while the sum is 44.

The square root of 499421915 is about 22347.7496629974. The cubic root of 499421915 is about 793.3945237779.

The spelling of 499421915 in words is "four hundred ninety-nine million, four hundred twenty-one thousand, nine hundred fifteen".