38405412 has 18 divisors (see below), whose sum is σ = 97080438. Its totient is φ = 12801792.

The previous prime is 38405333. The next prime is 38405447. The reversal of 38405412 is 21450483.

It can be written as a sum of positive squares in only one way, i.e., 32901696 + 5503716 = 5736^2 + 2346^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 533373 + ... + 533444.

Almost surely, 2^38405412 is an apocalyptic number.

It is an amenable number.

38405412 is an abundant number, since it is smaller than the sum of its proper divisors (58675026).

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

38405412 is a wasteful number, since it uses less digits than its factorization.

38405412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1066827 (or 1066822 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 27.

The square root of 38405412 is about 6197.2100174191. The cubic root of 38405412 is about 337.3889148817.

Adding to 38405412 its reverse (21450483), we get a palindrome (59855895).

It can be divided in two parts, 38 and 405412, that added together give a triangular number (405450 = T₉₀₀).

The spelling of 38405412 in words is "thirty-eight million, four hundred five thousand, four hundred twelve".