381432012 has 48 divisors (see below), whose sum is σ = 991532640. Its totient is φ = 113315328.

The previous prime is 381431993. The next prime is 381432031. The reversal of 381432012 is 210234183.

It is an interprime number because it is at equal distance from previous prime (381431993) and next prime (381432031).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 37633 + ... + 46680.

It is an arithmetic number, because the mean of its divisors is an integer number (20656930).

Almost surely, 2^381432012 is an apocalyptic number.

It is an amenable number.

381432012 is an abundant number, since it is smaller than the sum of its proper divisors (610100628).

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

381432012 is a wasteful number, since it uses less digits than its factorization.

381432012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 84362 (or 84360 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 24.

The square root of 381432012 is about 19530.2844833351. The cubic root of 381432012 is about 725.2243535544.

Adding to 381432012 its reverse (210234183), we get a palindrome (591666195).

The spelling of 381432012 in words is "three hundred eighty-one million, four hundred thirty-two thousand, twelve".