1000216392 has 64 divisors (see below), whose sum is σ = 3008179200. Its totient is φ = 270734400.

The previous prime is 1000216391. The next prime is 1000216423. The reversal of 1000216392 is 2936120001.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is not an unprimeable number, because it can be changed into a prime (1000216391) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 153484 + ... + 159867.

It is an arithmetic number, because the mean of its divisors is an integer number (47002800).

Almost surely, 2^1000216392 is an apocalyptic number.

1000216392 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1000216392 is an abundant number, since it is smaller than the sum of its proper divisors (2007962808).

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

1000216392 is a wasteful number, since it uses less digits than its factorization.

1000216392 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 313386 (or 313382 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 24.

The square root of 1000216392 is about 31626.1978745470. The cubic root of 1000216392 is about 1000.0721254645.

Adding to 1000216392 its reverse (2936120001), we get a palindrome (3936336393).

The spelling of 1000216392 in words is "one billion, two hundred sixteen thousand, three hundred ninety-two".