709442220 has 48 divisors (see below), whose sum is σ = 1987614720. Its totient is φ = 189072576.

The previous prime is 709442203. The next prime is 709442221. The reversal of 709442220 is 22244907.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is not an unprimeable number, because it can be changed into a prime (709442221) 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, 168501 + ... + 172659.

It is an arithmetic number, because the mean of its divisors is an integer number (41408640).

Almost surely, 2^709442220 is an apocalyptic number.

It is an amenable number.

709442220 is an abundant number, since it is smaller than the sum of its proper divisors (1278172500).

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

709442220 is a wasteful number, since it uses less digits than its factorization.

709442220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7014 (or 7012 counting only the distinct ones).

The product of its (nonzero) digits is 8064, while the sum is 30.

The square root of 709442220 is about 26635.3565773015. The cubic root of 709442220 is about 891.8784631344.

The spelling of 709442220 in words is "seven hundred nine million, four hundred forty-two thousand, two hundred twenty".