747409212 has 72 divisors (see below), whose sum is σ = 2064469680. Its totient is φ = 226110720.

The previous prime is 747409207. The next prime is 747409241. The reversal of 747409212 is 212904747.

747409212 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 319198 + ... + 321530.

It is an arithmetic number, because the mean of its divisors is an integer number (28673190).

Almost surely, 2^747409212 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 747409212, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1032234840).

747409212 is an abundant number, since it is smaller than the sum of its proper divisors (1317060468).

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

747409212 is a wasteful number, since it uses less digits than its factorization.

747409212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3163 (or 3158 counting only the distinct ones).

The product of its (nonzero) digits is 28224, while the sum is 36.

The square root of 747409212 is about 27338.7858545328. The cubic root of 747409212 is about 907.5129174219.

The spelling of 747409212 in words is "seven hundred forty-seven million, four hundred nine thousand, two hundred twelve".