1957230 has 64 divisors (see below), whose sum is σ = 5702400. Its totient is φ = 473760.

The previous prime is 1957187. The next prime is 1957243. The reversal of 1957230 is 327591.

1957230 = T₂₇₆ + T₂₇₇ + ... + T₃₁₉.

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

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 1957194 and 1957203.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2641 + ... + 3299.

It is an arithmetic number, because the mean of its divisors is an integer number (89100).

2^1957230 is an apocalyptic number.

1957230 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 1957230, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2851200).

1957230 is an abundant number, since it is smaller than the sum of its proper divisors (3745170).

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

1957230 is a wasteful number, since it uses less digits than its factorization.

1957230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 686 (or 680 counting only the distinct ones).

The product of its (nonzero) digits is 1890, while the sum is 27.

The square root of 1957230 is about 1399.0103645077. The cubic root of 1957230 is about 125.0875120522.

It can be divided in two parts, 1957 and 230, that added together give a 7-th power (2187 = 3⁷).

The spelling of 1957230 in words is "one million, nine hundred fifty-seven thousand, two hundred thirty".