7401408 has 56 divisors (see below), whose sum is σ = 22384512. Its totient is φ = 2114304.

The previous prime is 7401403. The next prime is 7401413. The reversal of 7401408 is 8041047.

It is an interprime number because it is at equal distance from previous prime (7401403) and next prime (7401413).

It is a tau number, because it is divible by the number of its divisors (56).

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a nialpdrome in base 14.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7401403) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1410 + ... + 4097.

Almost surely, 2^7401408 is an apocalyptic number.

It is an amenable number.

7401408 is an abundant number, since it is smaller than the sum of its proper divisors (14983104).

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

7401408 is a wasteful number, since it uses less digits than its factorization.

7401408 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5529 (or 5519 counting only the distinct ones).

The product of its (nonzero) digits is 896, while the sum is 24.

The square root of 7401408 is about 2720.5528849850. The cubic root of 7401408 is about 194.8818745455.

The spelling of 7401408 in words is "seven million, four hundred one thousand, four hundred eight".