1622217404 has 12 divisors (see below), whose sum is σ = 2873084424. Its totient is φ = 801336144.

The previous prime is 1622217353. The next prime is 1622217463. The reversal of 1622217404 is 4047122261.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2442767 + ... + 2443430.

It is an arithmetic number, because the mean of its divisors is an integer number (239423702).

Almost surely, 2^1622217404 is an apocalyptic number.

It is an amenable number.

1622217404 is a deficient number, since it is larger than the sum of its proper divisors (1250867020).

1622217404 is a wasteful number, since it uses less digits than its factorization.

1622217404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4886284 (or 4886282 counting only the distinct ones).

The product of its (nonzero) digits is 5376, while the sum is 29.

The square root of 1622217404 is about 40276.7600981012. The cubic root of 1622217404 is about 1174.9959025661.

Adding to 1622217404 its reverse (4047122261), we get a palindrome (5669339665).

The spelling of 1622217404 in words is "one billion, six hundred twenty-two million, two hundred seventeen thousand, four hundred four".