1049990 has 8 divisors (see below), whose sum is σ = 1890000. Its totient is φ = 419992.

The previous prime is 1049977. The next prime is 1049999. The reversal of 1049990 is 999401.

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

It is a super-2 number, since 2×1049990² = 2204958000200, which contains 22 as substring.

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1049999) 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, 52490 + ... + 52509.

It is an arithmetic number, because the mean of its divisors is an integer number (236250).

2^1049990 is an apocalyptic number.

1049990 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1049990 is a deficient number, since it is larger than the sum of its proper divisors (840010).

1049990 is a wasteful number, since it uses less digits than its factorization.

1049990 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 105006.

The product of its (nonzero) digits is 2916, while the sum is 32.

The square root of 1049990 is about 1024.6901970840. The cubic root of 1049990 is about 101.6393130150.

The spelling of 1049990 in words is "one million, forty-nine thousand, nine hundred ninety".