489429400 has 24 divisors (see below), whose sum is σ = 1137923820. Its totient is φ = 195771680.

The previous prime is 489429383. The next prime is 489429407. The reversal of 489429400 is 4924984.

It is a super-2 number, since 2×489429400² = 479082275168720000, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (40).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (489429407) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1223374 + ... + 1223773.

Almost surely, 2^489429400 is an apocalyptic number.

489429400 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

489429400 is an abundant number, since it is smaller than the sum of its proper divisors (648494420).

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

489429400 is a wasteful number, since it uses less digits than its factorization.

489429400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2447163 (or 2447154 counting only the distinct ones).

The product of its (nonzero) digits is 82944, while the sum is 40.

The square root of 489429400 is about 22123.0513266141. The cubic root of 489429400 is about 788.0673798104.

The spelling of 489429400 in words is "four hundred eighty-nine million, four hundred twenty-nine thousand, four hundred".