1621022050 has 48 divisors (see below), whose sum is σ = 3227695200. Its totient is φ = 603849600.

The previous prime is 1621022033. The next prime is 1621022089. The reversal of 1621022050 is 502201261.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 41590 + ... + 70510.

It is an arithmetic number, because the mean of its divisors is an integer number (67243650).

Almost surely, 2^1621022050 is an apocalyptic number.

1621022050 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1621022050 is a deficient number, since it is larger than the sum of its proper divisors (1606673150).

1621022050 is a wasteful number, since it uses less digits than its factorization.

1621022050 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29011 (or 29006 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 19.

The square root of 1621022050 is about 40261.9181112872. The cubic root of 1621022050 is about 1174.7072274941.

The spelling of 1621022050 in words is "one billion, six hundred twenty-one million, twenty-two thousand, fifty".