80449431 has 16 divisors (see below), whose sum is σ = 111277056. Its totient is φ = 51662016.

The previous prime is 80449427. The next prime is 80449463. The reversal of 80449431 is 13494408.

It is a happy number.

It is not a de Polignac number, because 80449431 - 2² = 80449427 is a prime.

It is a super-2 number, since 2×80449431² = 12944221896447522, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 80449392 and 80449401.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80449471) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5146 + ... + 13688.

It is an arithmetic number, because the mean of its divisors is an integer number (6954816).

Almost surely, 2^80449431 is an apocalyptic number.

80449431 is a deficient number, since it is larger than the sum of its proper divisors (30827625).

80449431 is a wasteful number, since it uses less digits than its factorization.

80449431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8662.

The product of its (nonzero) digits is 13824, while the sum is 33.

The square root of 80449431 is about 8969.3606795579. The cubic root of 80449431 is about 431.6923231439.

The spelling of 80449431 in words is "eighty million, four hundred forty-nine thousand, four hundred thirty-one".