749999022220 has 96 divisors (see below), whose sum is σ = 1882119149568. Its totient is φ = 245456842752.

The previous prime is 749999022209. The next prime is 749999022259. The reversal of 749999022220 is 22220999947.

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, 1329004 + ... + 1807276.

It is an arithmetic number, because the mean of its divisors is an integer number (19605407808).

Almost surely, 2^749999022220 is an apocalyptic number.

749999022220 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 749999022220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (941059574784).

749999022220 is an abundant number, since it is smaller than the sum of its proper divisors (1132120127348).

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

749999022220 is a wasteful number, since it uses less digits than its factorization.

749999022220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 478799 (or 478797 counting only the distinct ones).

The product of its (nonzero) digits is 2939328, while the sum is 55.

The spelling of 749999022220 in words is "seven hundred forty-nine billion, nine hundred ninety-nine million, twenty-two thousand, two hundred twenty".