499981254 has 64 divisors (see below), whose sum is σ = 1087644672. Its totient is φ = 152640000.

The previous prime is 499981249. The next prime is 499981319. The reversal of 499981254 is 452189994.

It is a Harshad number since it is a multiple of its sum of digits (51).

It is a junction number, because it is equal to n+sod(n) for n = 499981197 and 499981206.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 665379 + ... + 666129.

It is an arithmetic number, because the mean of its divisors is an integer number (16994448).

Almost surely, 2^499981254 is an apocalyptic number.

499981254 is an abundant number, since it is smaller than the sum of its proper divisors (587663418).

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

499981254 is a wasteful number, since it uses less digits than its factorization.

499981254 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 941.

The product of its digits is 933120, while the sum is 51.

The square root of 499981254 is about 22360.2605977658. The cubic root of 499981254 is about 793.6906067201.

The spelling of 499981254 in words is "four hundred ninety-nine million, nine hundred eighty-one thousand, two hundred fifty-four".