919395672 has 64 divisors (see below), whose sum is σ = 2494894080. Its totient is φ = 280651392.

The previous prime is 919395667. The next prime is 919395677. The reversal of 919395672 is 276593919.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (919395667) and next prime (919395677).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (919395677) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 28023 + ... + 51225.

It is an arithmetic number, because the mean of its divisors is an integer number (38982720).

Almost surely, 2^919395672 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 919395672, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1247447040).

919395672 is an abundant number, since it is smaller than the sum of its proper divisors (1575498408).

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

919395672 is a wasteful number, since it uses less digits than its factorization.

919395672 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23352 (or 23348 counting only the distinct ones).

The product of its digits is 918540, while the sum is 51.

The square root of 919395672 is about 30321.5380876366. The cubic root of 919395672 is about 972.3758220872.

The spelling of 919395672 in words is "nine hundred nineteen million, three hundred ninety-five thousand, six hundred seventy-two".