1621084682 has 16 divisors (see below), whose sum is σ = 2779583040. Its totient is φ = 694605408.

The previous prime is 1621084639. The next prime is 1621084711. The reversal of 1621084682 is 2864801261.

It is a happy number.

It is a super-2 number, since 2×1621084682² = 5255831092430082248, which contains 22 as substring.

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, 83153 + ... + 100779.

It is an arithmetic number, because the mean of its divisors is an integer number (173723940).

Almost surely, 2^1621084682 is an apocalyptic number.

1621084682 is a deficient number, since it is larger than the sum of its proper divisors (1158498358).

1621084682 is a wasteful number, since it uses less digits than its factorization.

1621084682 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24205.

The product of its (nonzero) digits is 36864, while the sum is 38.

The square root of 1621084682 is about 40262.6959107311. The cubic root of 1621084682 is about 1174.7223564916.

The spelling of 1621084682 in words is "one billion, six hundred twenty-one million, eighty-four thousand, six hundred eighty-two".