1955490 has 16 divisors (see below), whose sum is σ = 4693248. Its totient is φ = 521456.

The previous prime is 1955489. The next prime is 1955491. The reversal of 1955490 is 945591.

It is an interprime number because it is at equal distance from previous prime (1955489) and next prime (1955491).

It is a super-2 number, since 2×1955490² = 7647882280200, which contains 22 as substring.

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1955491) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 32562 + ... + 32621.

It is an arithmetic number, because the mean of its divisors is an integer number (293328).

2^1955490 is an apocalyptic number.

1955490 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1955490 is an abundant number, since it is smaller than the sum of its proper divisors (2737758).

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

1955490 is a wasteful number, since it uses less digits than its factorization.

1955490 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65193.

The product of its (nonzero) digits is 8100, while the sum is 33.

The square root of 1955490 is about 1398.3883580751. The cubic root of 1955490 is about 125.0504329827.

The spelling of 1955490 in words is "one million, nine hundred fifty-five thousand, four hundred ninety".