1652040 has 96 divisors (see below), whose sum is σ = 5798520. Its totient is φ = 405504.

The previous prime is 1652039. The next prime is 1652047. The reversal of 1652040 is 402561.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 956484 + 695556 = 978^2 + 834^2 .

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (1652047) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4504 + ... + 4856.

2^1652040 is an apocalyptic number.

1652040 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 1652040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2899260).

1652040 is an abundant number, since it is smaller than the sum of its proper divisors (4146480).

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

1652040 is a wasteful number, since it uses less digits than its factorization.

1652040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 383 (or 376 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 18.

The square root of 1652040 is about 1285.3170815017. The cubic root of 1652040 is about 118.2152539428.

The spelling of 1652040 in words is "one million, six hundred fifty-two thousand, forty".