80370140 has 12 divisors (see below), whose sum is σ = 168777336. Its totient is φ = 32148048.

The previous prime is 80370137. The next prime is 80370149. The reversal of 80370140 is 4107308.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80370149) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2009234 + ... + 2009273.

It is an arithmetic number, because the mean of its divisors is an integer number (14064778).

Almost surely, 2^80370140 is an apocalyptic number.

It is an amenable number.

80370140 is an abundant number, since it is smaller than the sum of its proper divisors (88407196).

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

80370140 is a wasteful number, since it uses less digits than its factorization.

80370140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4018516 (or 4018514 counting only the distinct ones).

The product of its (nonzero) digits is 672, while the sum is 23.

The square root of 80370140 is about 8964.9394866892. The cubic root of 80370140 is about 431.5504511331.

Adding to 80370140 its reverse (4107308), we get a palindrome (84477448).

The spelling of 80370140 in words is "eighty million, three hundred seventy thousand, one hundred forty".