1498990 has 8 divisors (see below), whose sum is σ = 2698200. Its totient is φ = 599592.

The previous prime is 1498969. The next prime is 1498993. The reversal of 1498990 is 998941.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1498993) 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, 74940 + ... + 74959.

It is an arithmetic number, because the mean of its divisors is an integer number (337275).

2^1498990 is an apocalyptic number.

1498990 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1498990 is a deficient number, since it is larger than the sum of its proper divisors (1199210).

1498990 is a wasteful number, since it uses less digits than its factorization.

1498990 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 149906.

The product of its (nonzero) digits is 23328, while the sum is 40.

The square root of 1498990 is about 1224.3324711858. The cubic root of 1498990 is about 114.4457260114.

The spelling of 1498990 in words is "one million, four hundred ninety-eight thousand, nine hundred ninety".