650077440 has 288 divisors, whose sum is σ = 2210267136. Its totient is φ = 162570240.

The previous prime is 650077423. The next prime is 650077447. The reversal of 650077440 is 44770056.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (650077447) 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, 5118657 + ... + 5118783.

Almost surely, 2^650077440 is an apocalyptic number.

650077440 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 650077440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1105133568).

650077440 is an abundant number, since it is smaller than the sum of its proper divisors (1560189696).

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

650077440 is a wasteful number, since it uses less digits than its factorization.

650077440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 225 (or 211 counting only the distinct ones).

The product of its (nonzero) digits is 23520, while the sum is 33.

The square root of 650077440 is about 25496.6162460825. The cubic root of 650077440 is about 866.2735047730.

The spelling of 650077440 in words is "six hundred fifty million, seventy-seven thousand, four hundred forty".