1382697216 has 252 divisors, whose sum is σ = 4289456640. Its totient is φ = 444165120.

The previous prime is 1382697139. The next prime is 1382697221. The reversal of 1382697216 is 6127962831.

It is a super-2 number, since 2×1382697216² = 3823703182268301312, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 27 ways as a sum of consecutive naturals, for example, 5785225 + ... + 5785463.

Almost surely, 2^1382697216 is an apocalyptic number.

1382697216 is a gapful number since it is divisible by the number (16) 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 1382697216, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2144728320).

1382697216 is an abundant number, since it is smaller than the sum of its proper divisors (2906759424).

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

1382697216 is an frugal number, since it uses more digits than its factorization.

1382697216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 304 (or 275 counting only the distinct ones).

The product of its digits is 217728, while the sum is 45.

The square root of 1382697216 is about 37184.6368275932. The cubic root of 1382697216 is about 1114.0611496742.

The spelling of 1382697216 in words is "one billion, three hundred eighty-two million, six hundred ninety-seven thousand, two hundred sixteen".