491154048 has 384 divisors, whose sum is σ = 1813968000. Its totient is φ = 126443520.

The previous prime is 491153989. The next prime is 491154061. The reversal of 491154048 is 840451194.

It is a tau number, because it is divible by the number of its divisors (384).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 4346440 + ... + 4346552.

It is an arithmetic number, because the mean of its divisors is an integer number (4723875).

Almost surely, 2^491154048 is an apocalyptic number.

491154048 is a gapful number since it is divisible by the number (48) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 491154048, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (906984000).

491154048 is an abundant number, since it is smaller than the sum of its proper divisors (1322813952).

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

491154048 is a wasteful number, since it uses less digits than its factorization.

491154048 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 165 (or 136 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 36.

The square root of 491154048 is about 22161.9955780160. The cubic root of 491154048 is about 788.9919568158.

The spelling of 491154048 in words is "four hundred ninety-one million, one hundred fifty-four thousand, forty-eight".