80400616 has 16 divisors (see below), whose sum is σ = 159619140. Its totient is φ = 37835520.

The previous prime is 80400589. The next prime is 80400637. The reversal of 80400616 is 61600408.

It can be written as a sum of positive squares in 2 ways, for example, as 80102500 + 298116 = 8950^2 + 546^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 295455 + ... + 295726.

Almost surely, 2^80400616 is an apocalyptic number.

It is an amenable number.

80400616 is a deficient number, since it is larger than the sum of its proper divisors (79218524).

80400616 is a wasteful number, since it uses less digits than its factorization.

80400616 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 591204 (or 591200 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 25.

The square root of 80400616 is about 8966.6390581979. The cubic root of 80400616 is about 431.6049915777.

The spelling of 80400616 in words is "eighty million, four hundred thousand, six hundred sixteen".