499278 has 32 divisors (see below), whose sum is σ = 1110816. Its totient is φ = 148608.

The previous prime is 499277. The next prime is 499283. The reversal of 499278 is 872994.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (499277) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2800 + ... + 2972.

It is an arithmetic number, because the mean of its divisors is an integer number (34713).

2⁴⁹⁹²⁷⁸ is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 499278, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (555408).

499278 is an abundant number, since it is smaller than the sum of its proper divisors (611538).

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

499278 is a wasteful number, since it uses less digits than its factorization.

499278 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 228.

The product of its digits is 36288, while the sum is 39.

The square root of 499278 is about 706.5960656556. The cubic root of 499278 is about 79.3318307431.

It can be divided in two parts, 4992 and 78, that multiplied together give a square (389376 = 624²).

The spelling of 499278 in words is "four hundred ninety-nine thousand, two hundred seventy-eight".