744698220 has 96 divisors (see below), whose sum is σ = 2395642368. Its totient is φ = 169316352.

The previous prime is 744698203. The next prime is 744698239. The reversal of 744698220 is 22896447.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 76467 + ... + 85653.

It is an arithmetic number, because the mean of its divisors is an integer number (24954608).

Almost surely, 2^744698220 is an apocalyptic number.

744698220 is a gapful number since it is divisible by the number (70) 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 744698220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1197821184).

744698220 is an abundant number, since it is smaller than the sum of its proper divisors (1650944148).

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

744698220 is a wasteful number, since it uses less digits than its factorization.

744698220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9399 (or 9397 counting only the distinct ones).

The product of its (nonzero) digits is 193536, while the sum is 42.

The square root of 744698220 is about 27289.1593861006. The cubic root of 744698220 is about 906.4143488221.

The spelling of 744698220 in words is "seven hundred forty-four million, six hundred ninety-eight thousand, two hundred twenty".