1953720 has 112 divisors (see below), whose sum is σ = 6689160. Its totient is φ = 513216.

The previous prime is 1953709. The next prime is 1953727. The reversal of 1953720 is 273591.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1953727) by changing a digit.

It is a polite number, since it can be written in 27 ways as a sum of consecutive naturals, for example, 29127 + ... + 29193.

2^1953720 is an apocalyptic number.

1953720 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1953720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3344580).

1953720 is an abundant number, since it is smaller than the sum of its proper divisors (4735440).

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

1953720 is an equidigital number, since it uses as much as digits as its factorization.

1953720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 96 (or 77 counting only the distinct ones).

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

The square root of 1953720 is about 1397.7553433988. The cubic root of 1953720 is about 125.0126920446.

The spelling of 1953720 in words is "one million, nine hundred fifty-three thousand, seven hundred twenty".