1955630 has 16 divisors (see below), whose sum is σ = 3538080. Its totient is φ = 778272.

The previous prime is 1955609. The next prime is 1955633. The reversal of 1955630 is 365591.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 1955593 and 1955602.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1955633) 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, 2327 + ... + 3053.

It is an arithmetic number, because the mean of its divisors is an integer number (221130).

2^1955630 is an apocalyptic number.

1955630 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1955630 is a deficient number, since it is larger than the sum of its proper divisors (1582450).

1955630 is a wasteful number, since it uses less digits than its factorization.

1955630 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1003.

The product of its (nonzero) digits is 4050, while the sum is 29.

The square root of 1955630 is about 1398.4384148042. The cubic root of 1955630 is about 125.0534171696.

The spelling of 1955630 in words is "one million, nine hundred fifty-five thousand, six hundred thirty".