80090040 has 32 divisors (see below), whose sum is σ = 240270480. Its totient is φ = 21357312.

The previous prime is 80089981. The next prime is 80090041. The reversal of 80090040 is 4009008.

It is a junction number, because it is equal to n+sod(n) for n = 80089989 and 80090016.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80090041) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 333589 + ... + 333828.

Almost surely, 2^80090040 is an apocalyptic number.

It is an amenable number.

80090040 is an abundant number, since it is smaller than the sum of its proper divisors (160180440).

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

80090040 is a wasteful number, since it uses less digits than its factorization.

80090040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 667431 (or 667427 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 21.

The square root of 80090040 is about 8949.3038835431. The cubic root of 80090040 is about 431.0485318132.

Adding to 80090040 its reverse (4009008), we get a palindrome (84099048).

The spelling of 80090040 in words is "eighty million, ninety thousand, forty".