40003412 has 12 divisors (see below), whose sum is σ = 72420180. Its totient is φ = 19311936.

The previous prime is 40003409. The next prime is 40003451. The reversal of 40003412 is 21430004.

It can be written as a sum of positive squares in 2 ways, for example, as 23078416 + 16924996 = 4804^2 + 4114^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 172313 + ... + 172544.

It is an arithmetic number, because the mean of its divisors is an integer number (6035015).

Almost surely, 2^40003412 is an apocalyptic number.

It is an amenable number.

40003412 is a deficient number, since it is larger than the sum of its proper divisors (32416768).

40003412 is a wasteful number, since it uses less digits than its factorization.

40003412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 344890 (or 344888 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 14.

The square root of 40003412 is about 6324.8250568692. The cubic root of 40003412 is about 342.0049131221.

Adding to 40003412 its reverse (21430004), we get a palindrome (61433416).

The spelling of 40003412 in words is "forty million, three thousand, four hundred twelve".