1601040 has 80 divisors (see below), whose sum is σ = 5678208. Its totient is φ = 365568.

The previous prime is 1601023. The next prime is 1601051. The reversal of 1601040 is 401061.

It is a tau number, because it is divible by the number of its divisors (80).

It is a Harshad number since it is a multiple of its sum of digits (12).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1204 + ... + 2156.

2^1601040 is an apocalyptic number.

1601040 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 1601040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2839104).

1601040 is an abundant number, since it is smaller than the sum of its proper divisors (4077168).

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

1601040 is a wasteful number, since it uses less digits than its factorization.

1601040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 976 (or 970 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 12.

The square root of 1601040 is about 1265.3220933818. The cubic root of 1601040 is about 116.9860455269.

The spelling of 1601040 in words is "one million, six hundred one thousand, forty".