1649098560 has 112 divisors (see below), whose sum is σ = 5246827200. Its totient is φ = 438841344.

The previous prime is 1649098553. The next prime is 1649098567. The reversal of 1649098560 is 658909461.

It is an interprime number because it is at equal distance from previous prime (1649098553) and next prime (1649098567).

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1649098567) 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, 544731 + ... + 547749.

Almost surely, 2^1649098560 is an apocalyptic number.

1649098560 is a gapful number since it is divisible by the number (10) 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 1649098560, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2623413600).

1649098560 is an abundant number, since it is smaller than the sum of its proper divisors (3597728640).

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

1649098560 is a wasteful number, since it uses less digits than its factorization.

1649098560 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3608 (or 3598 counting only the distinct ones).

The product of its (nonzero) digits is 466560, while the sum is 48.

The square root of 1649098560 is about 40609.0945478965. The cubic root of 1649098560 is about 1181.4505191916.

The spelling of 1649098560 in words is "one billion, six hundred forty-nine million, ninety-eight thousand, five hundred sixty".