1074640 has 80 divisors (see below), whose sum is σ = 3035520. Its totient is φ = 345600.

The previous prime is 1074617. The next prime is 1074641. The reversal of 1074640 is 464701.

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

It is a super-2 number, since 2×1074640² = 2309702259200, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1074641) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10590 + ... + 10690.

It is an arithmetic number, because the mean of its divisors is an integer number (37944).

2^1074640 is an apocalyptic number.

1074640 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 1074640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1517760).

1074640 is an abundant number, since it is smaller than the sum of its proper divisors (1960880).

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

1074640 is a wasteful number, since it uses less digits than its factorization.

1074640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 140 (or 134 counting only the distinct ones).

The product of its (nonzero) digits is 672, while the sum is 22.

The square root of 1074640 is about 1036.6484457134. The cubic root of 1074640 is about 102.4285442886.

The spelling of 1074640 in words is "one million, seventy-four thousand, six hundred forty".