40002355 has 8 divisors (see below), whose sum is σ = 48046032. Its totient is φ = 31973088.

The previous prime is 40002337. The next prime is 40002367. The reversal of 40002355 is 55320004.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 40002355 - 2¹⁷ = 39871283 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3952 + ... + 9778.

It is an arithmetic number, because the mean of its divisors is an integer number (6005754).

Almost surely, 2^40002355 is an apocalyptic number.

40002355 is a deficient number, since it is larger than the sum of its proper divisors (8043677).

40002355 is a wasteful number, since it uses less digits than its factorization.

40002355 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7205.

The product of its (nonzero) digits is 600, while the sum is 19.

The square root of 40002355 is about 6324.7414966938. The cubic root of 40002355 is about 342.0019008592.

Adding to 40002355 its reverse (55320004), we get a palindrome (95322359).

The spelling of 40002355 in words is "forty million, two thousand, three hundred fifty-five".