1529318412 has 72 divisors (see below), whose sum is σ = 3998746752. Its totient is φ = 492307200.

The previous prime is 1529318411. The next prime is 1529318431. The reversal of 1529318412 is 2148139251.

1529318412 is a `hidden beast` number, since 152 + 93 + 1 + 8 + 412 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (1529318411) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 687462 + ... + 689682.

Almost surely, 2^1529318412 is an apocalyptic number.

1529318412 is a gapful number since it is divisible by the number (12) 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 1529318412, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1999373376).

1529318412 is an abundant number, since it is smaller than the sum of its proper divisors (2469428340).

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

1529318412 is a wasteful number, since it uses less digits than its factorization.

1529318412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2879 (or 2874 counting only the distinct ones).

The product of its digits is 17280, while the sum is 36.

The square root of 1529318412 is about 39106.5008917955. The cubic root of 1529318412 is about 1152.1242180145.

The spelling of 1529318412 in words is "one billion, five hundred twenty-nine million, three hundred eighteen thousand, four hundred twelve".