7400981 has 8 divisors (see below), whose sum is σ = 8476224. Its totient is φ = 6330240.

The previous prime is 7400927. The next prime is 7400989. The reversal of 7400981 is 1890047.

7400981 is digitally balanced in base 8, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 7400981 - 2²² = 3206677 is a prime.

It is a super-2 number, since 2×7400981² = 109549039524722, which contains 22 as substring.

It is a Duffinian number.

7400981 is strictly pandigital in base 8.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7400989) 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, 3926 + ... + 5496.

It is an arithmetic number, because the mean of its divisors is an integer number (1059528).

Almost surely, 2^7400981 is an apocalyptic number.

7400981 is the 1571-st octagonal number.

It is an amenable number.

7400981 is a deficient number, since it is larger than the sum of its proper divisors (1075243).

7400981 is a wasteful number, since it uses less digits than its factorization.

7400981 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2251.

The product of its (nonzero) digits is 2016, while the sum is 29.

The square root of 7400981 is about 2720.4744071577. The cubic root of 7400981 is about 194.8781267829.

The spelling of 7400981 in words is "seven million, four hundred thousand, nine hundred eighty-one".