709090354440 has 1024 divisors, whose sum is σ = 2770022707200. Its totient is φ = 159783321600.

The previous prime is 709090354429. The next prime is 709090354597. The reversal of 709090354440 is 44453090907.

It is a happy number.

709090354440 is a `hidden beast` number, since 7 + 0 + 90 + 90 + 35 + 4 + 440 = 666.

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 255 ways as a sum of consecutive naturals, for example, 1645221025 + ... + 1645221455.

It is an arithmetic number, because the mean of its divisors is an integer number (2705100300).

Almost surely, 2^709090354440 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 709090354440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1385011353600).

709090354440 is an abundant number, since it is smaller than the sum of its proper divisors (2060932352760).

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

709090354440 is a wasteful number, since it uses less digits than its factorization.

709090354440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 655 (or 645 counting only the distinct ones).

The product of its (nonzero) digits is 544320, while the sum is 45.

The spelling of 709090354440 in words is "seven hundred nine billion, ninety million, three hundred fifty-four thousand, four hundred forty".