1654490718 has 64 divisors (see below), whose sum is σ = 3760706880. Its totient is φ = 538971264.

The previous prime is 1654490713. The next prime is 1654490741. The reversal of 1654490718 is 8170944561.

1654490718 is a `hidden beast` number, since 1 + 6 + 544 + 90 + 7 + 18 = 666.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1654490713) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 837580 + ... + 839552.

It is an arithmetic number, because the mean of its divisors is an integer number (58761045).

Almost surely, 2^1654490718 is an apocalyptic number.

1654490718 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 1654490718, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1880353440).

1654490718 is an abundant number, since it is smaller than the sum of its proper divisors (2106216162).

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

1654490718 is a wasteful number, since it uses less digits than its factorization.

1654490718 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2330 (or 2324 counting only the distinct ones).

The product of its (nonzero) digits is 241920, while the sum is 45.

The square root of 1654490718 is about 40675.4313806258. The cubic root of 1654490718 is about 1182.7368051657.

The spelling of 1654490718 in words is "one billion, six hundred fifty-four million, four hundred ninety thousand, seven hundred eighteen".