7401040 has 40 divisors (see below), whose sum is σ = 17463168. Its totient is φ = 2916480.

The previous prime is 7400993. The next prime is 7401041. The reversal of 7401040 is 401047.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (40).

It is a Harshad number since it is a multiple of its sum of digits (16).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7401041) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5029 + ... + 6331.

Almost surely, 2^7401040 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 7401040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8731584).

7401040 is an abundant number, since it is smaller than the sum of its proper divisors (10062128).

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

7401040 is a wasteful number, since it uses less digits than its factorization.

7401040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1387 (or 1381 counting only the distinct ones).

The product of its (nonzero) digits is 112, while the sum is 16.

The square root of 7401040 is about 2720.4852508330. The cubic root of 7401040 is about 194.8786446322.

Adding to 7401040 its reverse (401047), we get a palindrome (7802087).

The spelling of 7401040 in words is "seven million, four hundred one thousand, forty".