1940490 has 32 divisors (see below), whose sum is σ = 5175360. Its totient is φ = 517392.

The previous prime is 1940483. The next prime is 1940509. The reversal of 1940490 is 940491.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3324 + ... + 3863.

It is an arithmetic number, because the mean of its divisors is an integer number (161730).

2^1940490 is an apocalyptic number.

1940490 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1940490 is an abundant number, since it is smaller than the sum of its proper divisors (3234870).

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

1940490 is a wasteful number, since it uses less digits than its factorization.

1940490 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7203 (or 7197 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 27.

The square root of 1940490 is about 1393.0147163616. The cubic root of 1940490 is about 124.7298699921.

Subtracting from 1940490 its reverse (940491), we obtain a palindrome (999999).

The spelling of 1940490 in words is "one million, nine hundred forty thousand, four hundred ninety".