40010402 has 8 divisors (see below), whose sum is σ = 60363036. Its totient is φ = 19889392.

The previous prime is 40010393. The next prime is 40010441. The reversal of 40010402 is 20401004.

It can be written as a sum of positive squares in 2 ways, for example, as 34586161 + 5424241 = 5881^2 + 2329^2 .

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

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, 57473 + ... + 58164.

Almost surely, 2^40010402 is an apocalyptic number.

40010402 is a deficient number, since it is larger than the sum of its proper divisors (20352634).

40010402 is a wasteful number, since it uses less digits than its factorization.

40010402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 115812.

The product of its (nonzero) digits is 32, while the sum is 11.

The square root of 40010402 is about 6325.3776171862. The cubic root of 40010402 is about 342.0248320490.

Adding to 40010402 its reverse (20401004), we get a palindrome (60411406).

The spelling of 40010402 in words is "forty million, ten thousand, four hundred two".