40073210 has 8 divisors (see below), whose sum is σ = 72131796. Its totient is φ = 16029280.

The previous prime is 40073207. The next prime is 40073221. The reversal of 40073210 is 1237004.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 32160241 + 7912969 = 5671^2 + 2813^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2003651 + ... + 2003670.

Almost surely, 2^40073210 is an apocalyptic number.

40073210 is a deficient number, since it is larger than the sum of its proper divisors (32058586).

40073210 is a wasteful number, since it uses less digits than its factorization.

40073210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4007328.

The product of its (nonzero) digits is 168, while the sum is 17.

The square root of 40073210 is about 6330.3404331837. The cubic root of 40073210 is about 342.2037077385.

The spelling of 40073210 in words is "forty million, seventy-three thousand, two hundred ten".