2220431402 has 8 divisors (see below), whose sum is σ = 3806453856. Its totient is φ = 951613452.

The previous prime is 2220431401. The next prime is 2220431417. The reversal of 2220431402 is 2041340222.

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

It is a super-2 number, since 2×2220431402² = 9860631221975371208, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2220431401) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 79301108 + ... + 79301135.

It is an arithmetic number, because the mean of its divisors is an integer number (475806732).

Almost surely, 2^2220431402 is an apocalyptic number.

2220431402 is a deficient number, since it is larger than the sum of its proper divisors (1586022454).

2220431402 is a wasteful number, since it uses less digits than its factorization.

2220431402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 158602252.

The product of its (nonzero) digits is 768, while the sum is 20.

The square root of 2220431402 is about 47121.4537339416. The cubic root of 2220431402 is about 1304.6052449770.

Adding to 2220431402 its reverse (2041340222), we get a palindrome (4261771624).

The spelling of 2220431402 in words is "two billion, two hundred twenty million, four hundred thirty-one thousand, four hundred two".