1071612408 has 192 divisors, whose sum is σ = 3071325600. Its totient is φ = 309944320.

The previous prime is 1071612403. The next prime is 1071612427. The reversal of 1071612408 is 8042161701.

It is a super-2 number, since 2×1071612408² = 2296706305959116928, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1071612401) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 22800241 + ... + 22800287.

Almost surely, 2^1071612408 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 1071612408, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1535662800).

1071612408 is an abundant number, since it is smaller than the sum of its proper divisors (1999713192).

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

1071612408 is a wasteful number, since it uses less digits than its factorization.

1071612408 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 190 (or 139 counting only the distinct ones).

The product of its (nonzero) digits is 2688, while the sum is 30.

The square root of 1071612408 is about 32735.4915649666. The cubic root of 1071612408 is about 1023.3226289050.

The spelling of 1071612408 in words is "one billion, seventy-one million, six hundred twelve thousand, four hundred eight".