1621106034 has 16 divisors (see below), whose sum is σ = 3281275872. Its totient is φ = 533858048.

The previous prime is 1621106029. The next prime is 1621106051. The reversal of 1621106034 is 4306011261.

It is a junction number, because it is equal to n+sod(n) for n = 1621105995 and 1621106013.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1627119 + ... + 1628114.

It is an arithmetic number, because the mean of its divisors is an integer number (205079742).

Almost surely, 2^1621106034 is an apocalyptic number.

1621106034 is an abundant number, since it is smaller than the sum of its proper divisors (1660169838).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1621106034 is a wasteful number, since it uses less digits than its factorization.

1621106034 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3255321.

The product of its (nonzero) digits is 864, while the sum is 24.

The square root of 1621106034 is about 40262.9610684560. The cubic root of 1621106034 is about 1174.7275140592.

Adding to 1621106034 its reverse (4306011261), we get a palindrome (5927117295).

The spelling of 1621106034 in words is "one billion, six hundred twenty-one million, one hundred six thousand, thirty-four".