80149644 has 36 divisors (see below), whose sum is σ = 203164416. Its totient is φ = 26642208.

The previous prime is 80149637. The next prime is 80149681. The reversal of 80149644 is 44694108.

It is a happy number.

80149644 is a `hidden beast` number, since 8 + 0 + 1 + 4 + 9 + 644 = 666.

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

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 80149599 and 80149608.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 10882 + ... + 16694.

It is an arithmetic number, because the mean of its divisors is an integer number (5643456).

Almost surely, 2^80149644 is an apocalyptic number.

It is an amenable number.

80149644 is an abundant number, since it is smaller than the sum of its proper divisors (123014772).

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

80149644 is a wasteful number, since it uses less digits than its factorization.

80149644 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6206 (or 6201 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 36.

The square root of 80149644 is about 8952.6333556111. The cubic root of 80149644 is about 431.1554358503.

The spelling of 80149644 in words is "eighty million, one hundred forty-nine thousand, six hundred forty-four".