909372672 has 216 divisors, whose sum is σ = 2861857544. Its totient is φ = 276037632.

The previous prime is 909372647. The next prime is 909372703. The reversal of 909372672 is 276273909.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 29419776 + 879952896 = 5424^2 + 29664^2 .

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, 2905188 + ... + 2905500.

Almost surely, 2^909372672 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 909372672, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1430928772).

909372672 is an abundant number, since it is smaller than the sum of its proper divisors (1952484872).

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

909372672 is a wasteful number, since it uses less digits than its factorization.

909372672 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 445 (or 428 counting only the distinct ones).

The product of its (nonzero) digits is 285768, while the sum is 45.

The square root of 909372672 is about 30155.8066050305. The cubic root of 909372672 is about 968.8293782088.

The spelling of 909372672 in words is "nine hundred nine million, three hundred seventy-two thousand, six hundred seventy-two".