80031405 has 16 divisors (see below), whose sum is σ = 128461824. Its totient is φ = 42546240.

The previous prime is 80031403. The next prime is 80031473. The reversal of 80031405 is 50413008.

It is not a de Polignac number, because 80031405 - 2¹ = 80031403 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80031403) 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, 3661 + ... + 13170.

It is an arithmetic number, because the mean of its divisors is an integer number (8028864).

Almost surely, 2^80031405 is an apocalyptic number.

It is an amenable number.

80031405 is a deficient number, since it is larger than the sum of its proper divisors (48430419).

80031405 is a wasteful number, since it uses less digits than its factorization.

80031405 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17156.

The product of its (nonzero) digits is 480, while the sum is 21.

The square root of 80031405 is about 8946.0273306088. The cubic root of 80031405 is about 430.9433139812.

The spelling of 80031405 in words is "eighty million, thirty-one thousand, four hundred five".