499467778 has 16 divisors (see below), whose sum is σ = 768516480. Its totient is φ = 243342576.

The previous prime is 499467767. The next prime is 499467779. The reversal of 499467778 is 877764994.

It is a super-2 number, since 2×499467778² = 498936122520514568, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (499467779) 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, 9925 + ... + 33127.

It is an arithmetic number, because the mean of its divisors is an integer number (48032280).

Almost surely, 2^499467778 is an apocalyptic number.

499467778 is a deficient number, since it is larger than the sum of its proper divisors (269048702).

499467778 is a wasteful number, since it uses less digits than its factorization.

499467778 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23481.

The product of its digits is 21337344, while the sum is 61.

The square root of 499467778 is about 22348.7757606541. The cubic root of 499467778 is about 793.4188094157.

The spelling of 499467778 in words is "four hundred ninety-nine million, four hundred sixty-seven thousand, seven hundred seventy-eight".