80421490 has 32 divisors (see below), whose sum is σ = 152979840. Its totient is φ = 30355200.

The previous prime is 80421479. The next prime is 80421499. The reversal of 80421490 is 9412408.

It is not an unprimeable number, because it can be changed into a prime (80421499) 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, 58410 + ... + 59770.

It is an arithmetic number, because the mean of its divisors is an integer number (4780620).

Almost surely, 2^80421490 is an apocalyptic number.

80421490 is a deficient number, since it is larger than the sum of its proper divisors (72558350).

80421490 is a wasteful number, since it uses less digits than its factorization.

80421490 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1698.

The product of its (nonzero) digits is 2304, while the sum is 28.

The square root of 80421490 is about 8967.8029639372. The cubic root of 80421490 is about 431.6423401433.

Adding to 80421490 its reverse (9412408), we get a palindrome (89833898).

The spelling of 80421490 in words is "eighty million, four hundred twenty-one thousand, four hundred ninety".