40019204 has 6 divisors (see below), whose sum is σ = 70033614. Its totient is φ = 20009600.

The previous prime is 40019179. The next prime is 40019219. The reversal of 40019204 is 40291004.

It can be written as a sum of positive squares in only one way, i.e., 32718400 + 7300804 = 5720^2 + 2702^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5002397 + ... + 5002404.

It is an arithmetic number, because the mean of its divisors is an integer number (11672269).

Almost surely, 2^40019204 is an apocalyptic number.

It is an amenable number.

40019204 is a deficient number, since it is larger than the sum of its proper divisors (30014410).

40019204 is a wasteful number, since it uses less digits than its factorization.

40019204 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10004805 (or 10004803 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 20.

The square root of 40019204 is about 6326.0733476620. The cubic root of 40019204 is about 342.0499112091.

The spelling of 40019204 in words is "forty million, nineteen thousand, two hundred four".