1621346264 has 8 divisors (see below), whose sum is σ = 3040024260. Its totient is φ = 810673128.

The previous prime is 1621346257. The next prime is 1621346281. The reversal of 1621346264 is 4626431261.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 101334134 + ... + 101334149.

Almost surely, 2^1621346264 is an apocalyptic number.

It is an amenable number.

1621346264 is a deficient number, since it is larger than the sum of its proper divisors (1418677996).

1621346264 is a wasteful number, since it uses less digits than its factorization.

1621346264 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 202668289 (or 202668285 counting only the distinct ones).

The product of its digits is 41472, while the sum is 35.

The square root of 1621346264 is about 40265.9442208922. The cubic root of 1621346264 is about 1174.7855384051.

The spelling of 1621346264 in words is "one billion, six hundred twenty-one million, three hundred forty-six thousand, two hundred sixty-four".