80657342 has 4 divisors (see below), whose sum is σ = 120986016. Its totient is φ = 40328670.

The previous prime is 80657329. The next prime is 80657351. The reversal of 80657342 is 24375608.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20164334 + ... + 20164337.

It is an arithmetic number, because the mean of its divisors is an integer number (30246504).

Almost surely, 2^80657342 is an apocalyptic number.

80657342 is a deficient number, since it is larger than the sum of its proper divisors (40328674).

80657342 is a wasteful number, since it uses less digits than its factorization.

80657342 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40328673.

The product of its (nonzero) digits is 40320, while the sum is 35.

The square root of 80657342 is about 8980.9432689445. The cubic root of 80657342 is about 432.0638872992.

The spelling of 80657342 in words is "eighty million, six hundred fifty-seven thousand, three hundred forty-two".