1641362644 has 12 divisors (see below), whose sum is σ = 2882536384. Its totient is φ = 817780824.

The previous prime is 1641362641. The next prime is 1641362647. The reversal of 1641362644 is 4462631461.

It is an interprime number because it is at equal distance from previous prime (1641362641) and next prime (1641362647).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1641362641) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 723852 + ... + 726115.

Almost surely, 2^1641362644 is an apocalyptic number.

It is an amenable number.

1641362644 is a deficient number, since it is larger than the sum of its proper divisors (1241173740).

1641362644 is a wasteful number, since it uses less digits than its factorization.

1641362644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1450254 (or 1450252 counting only the distinct ones).

The product of its digits is 82944, while the sum is 37.

The square root of 1641362644 is about 40513.7340169972. The cubic root of 1641362644 is about 1179.6002294153.

The spelling of 1641362644 in words is "one billion, six hundred forty-one million, three hundred sixty-two thousand, six hundred forty-four".