736543980 has 36 divisors (see below), whose sum is σ = 2234183952. Its totient is φ = 196411680.

The previous prime is 736543979. The next prime is 736543999. The reversal of 736543980 is 89345637.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2045776 + ... + 2046135.

Almost surely, 2^736543980 is an apocalyptic number.

It is an amenable number.

736543980 is an abundant number, since it is smaller than the sum of its proper divisors (1497639972).

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

736543980 is a wasteful number, since it uses less digits than its factorization.

736543980 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4091926 (or 4091921 counting only the distinct ones).

The product of its (nonzero) digits is 544320, while the sum is 45.

The square root of 736543980 is about 27139.3437650950. The cubic root of 736543980 is about 903.0938707357.

The spelling of 736543980 in words is "seven hundred thirty-six million, five hundred forty-three thousand, nine hundred eighty".