649059480 has 160 divisors (see below), whose sum is σ = 2196730800. Its totient is φ = 171880704.

The previous prime is 649059461. The next prime is 649059491. The reversal of 649059480 is 84950946.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (45).

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 39 ways as a sum of consecutive naturals, for example, 527506 + ... + 528734.

Almost surely, 2^649059480 is an apocalyptic number.

649059480 is a gapful number since it is divisible by the number (60) 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 649059480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1098365400).

649059480 is an abundant number, since it is smaller than the sum of its proper divisors (1547671320).

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

649059480 is a wasteful number, since it uses less digits than its factorization.

649059480 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1415 (or 1402 counting only the distinct ones).

The product of its (nonzero) digits is 311040, while the sum is 45.

The square root of 649059480 is about 25476.6457760828. The cubic root of 649059480 is about 865.8211009966.

The spelling of 649059480 in words is "six hundred forty-nine million, fifty-nine thousand, four hundred eighty".