9920406202 has 32 divisors (see below), whose sum is σ = 18312013440. Its totient is φ = 3933680640.

The previous prime is 9920406157. The next prime is 9920406241. The reversal of 9920406202 is 2026040299.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (34).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 339199 + ... + 367282.

It is an arithmetic number, because the mean of its divisors is an integer number (572250420).

Almost surely, 2^9920406202 is an apocalyptic number.

9920406202 is a deficient number, since it is larger than the sum of its proper divisors (8391607238).

9920406202 is a wasteful number, since it uses less digits than its factorization.

9920406202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 706566.

The product of its (nonzero) digits is 15552, while the sum is 34.

The square root of 9920406202 is about 99601.2359461468. The cubic root of 9920406202 is about 2148.7034693913.

The spelling of 9920406202 in words is "nine billion, nine hundred twenty million, four hundred six thousand, two hundred two".