40210400402 has 16 divisors (see below), whose sum is σ = 60802344960. Its totient is φ = 19943013888.

The previous prime is 40210400401. The next prime is 40210400471. The reversal of 40210400402 is 20400401204.

It is a super-3 number, since 3×40210400402³ (a number of 33 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (40210400401) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1646243 + ... + 1670489.

It is an arithmetic number, because the mean of its divisors is an integer number (3800146560).

Almost surely, 2^40210400402 is an apocalyptic number.

40210400402 is a deficient number, since it is larger than the sum of its proper divisors (20591944558).

40210400402 is a wasteful number, since it uses less digits than its factorization.

40210400402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30905.

The product of its (nonzero) digits is 256, while the sum is 17.

Adding to 40210400402 its reverse (20400401204), we get a palindrome (60610801606).

The spelling of 40210400402 in words is "forty billion, two hundred ten million, four hundred thousand, four hundred two".