80345426 has 32 divisors (see below), whose sum is σ = 142855680. Its totient is φ = 33172416.

The previous prime is 80345423. The next prime is 80345429. The reversal of 80345426 is 62454308.

80345426 = 1946² + 1947² + ... + 1966².

It is an interprime number because it is at equal distance from previous prime (80345423) and next prime (80345429).

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 80345392 and 80345401.

It is not an unprimeable number, because it can be changed into a prime (80345423) 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, 55751 + ... + 57173.

It is an arithmetic number, because the mean of its divisors is an integer number (4464240).

Almost surely, 2^80345426 is an apocalyptic number.

80345426 is a deficient number, since it is larger than the sum of its proper divisors (62510254).

80345426 is a wasteful number, since it uses less digits than its factorization.

80345426 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1578.

The product of its (nonzero) digits is 23040, while the sum is 32.

The square root of 80345426 is about 8963.5610111161. The cubic root of 80345426 is about 431.5062123514.

The spelling of 80345426 in words is "eighty million, three hundred forty-five thousand, four hundred twenty-six".