1958720 has 28 divisors (see below), whose sum is σ = 4664964. Its totient is φ = 783360.

The previous prime is 1958711. The next prime is 1958731. The reversal of 1958720 is 278591.

It can be written as a sum of positive squares in 2 ways, for example, as 440896 + 1517824 = 664^2 + 1232^2 .

It is a Harshad number since it is a multiple of its sum of digits (32).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2741 + ... + 3380.

2^1958720 is an apocalyptic number.

1958720 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1958720 is an abundant number, since it is smaller than the sum of its proper divisors (2706244).

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

1958720 is an equidigital number, since it uses as much as digits as its factorization.

1958720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6138 (or 6128 counting only the distinct ones).

The product of its (nonzero) digits is 5040, while the sum is 32.

The square root of 1958720 is about 1399.5427824829. The cubic root of 1958720 is about 125.1192462066.

The spelling of 1958720 in words is "one million, nine hundred fifty-eight thousand, seven hundred twenty".