499620644 has 24 divisors (see below), whose sum is σ = 883047648. Its totient is φ = 247334400.

The previous prime is 499620643. The next prime is 499620677. The reversal of 499620644 is 446026994.

It is a Smith number, since the sum of its digits (44) coincides with the sum of the digits of its prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 499620595 and 499620604.

It is not an unprimeable number, because it can be changed into a prime (499620643) 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, 173819 + ... + 176669.

It is an arithmetic number, because the mean of its divisors is an integer number (36793652).

Almost surely, 2^499620644 is an apocalyptic number.

It is an amenable number.

499620644 is a deficient number, since it is larger than the sum of its proper divisors (383427004).

499620644 is a wasteful number, since it uses less digits than its factorization.

499620644 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3275 (or 3273 counting only the distinct ones).

The product of its (nonzero) digits is 373248, while the sum is 44.

The square root of 499620644 is about 22352.1955073769. The cubic root of 499620644 is about 793.4997451594.

The spelling of 499620644 in words is "four hundred ninety-nine million, six hundred twenty thousand, six hundred forty-four".