1955190 has 16 divisors (see below), whose sum is σ = 4692528. Its totient is φ = 521376.

The previous prime is 1955183. The next prime is 1955197. The reversal of 1955190 is 915591.

It is an interprime number because it is at equal distance from previous prime (1955183) and next prime (1955197).

It is a super-2 number, since 2×1955190² = 7645535872200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (30), and also a Moran number because the ratio is a prime number: 65173 = 1955190 / (1 + 9 + 5 + 5 + 1 + 9 + 0).

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1955197) 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, 32557 + ... + 32616.

It is an arithmetic number, because the mean of its divisors is an integer number (293283).

2^1955190 is an apocalyptic number.

1955190 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1955190 is an abundant number, since it is smaller than the sum of its proper divisors (2737338).

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

1955190 is a wasteful number, since it uses less digits than its factorization.

1955190 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65183.

The product of its (nonzero) digits is 2025, while the sum is 30.

The square root of 1955190 is about 1398.2810876215. The cubic root of 1955190 is about 125.0440378169.

It can be divided in two parts, 1955 and 190, that added together give a triangular number (2145 = T₆₅).

The spelling of 1955190 in words is "one million, nine hundred fifty-five thousand, one hundred ninety".