1949490 has 24 divisors (see below), whose sum is σ = 5068908. Its totient is φ = 519840.

The previous prime is 1949473. The next prime is 1949501. The reversal of 1949490 is 949491.

It can be written as a sum of positive squares in 2 ways, for example, as 1896129 + 53361 = 1377^2 + 231^2 .

It is a super-2 number, since 2×1949490² = 7601022520200, which contains 22 as substring.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 10741 + ... + 10920.

2^1949490 is an apocalyptic number.

1949490 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1949490 is an abundant number, since it is smaller than the sum of its proper divisors (3119418).

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

1949490 is a wasteful number, since it uses less digits than its factorization.

1949490 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21674 (or 21671 counting only the distinct ones).

The product of its (nonzero) digits is 11664, while the sum is 36.

The square root of 1949490 is about 1396.2413831426. The cubic root of 1949490 is about 124.9224051756.

Subtracting from 1949490 its reverse (949491), we obtain a palindrome (999999).

The spelling of 1949490 in words is "one million, nine hundred forty-nine thousand, four hundred ninety".