402224231990 has 16 divisors (see below), whose sum is σ = 827432705952. Its totient is φ = 137905450944.

The previous prime is 402224231989. The next prime is 402224232013. The reversal of 402224231990 is 99132422204.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2873030159 + ... + 2873030298.

It is an arithmetic number, because the mean of its divisors is an integer number (51714544122).

Almost surely, 2^402224231990 is an apocalyptic number.

402224231990 is an abundant number, since it is smaller than the sum of its proper divisors (425208473962).

402224231990 is a wasteful number, since it uses less digits than its factorization.

402224231990 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5746060471.

The product of its (nonzero) digits is 62208, while the sum is 38.

The spelling of 402224231990 in words is "four hundred two billion, two hundred twenty-four million, two hundred thirty-one thousand, nine hundred ninety".