7400740040 has 16 divisors (see below), whose sum is σ = 16651665180. Its totient is φ = 2960296000.

The previous prime is 7400740001. The next prime is 7400740049. The reversal of 7400740040 is 400470047.

It can be written as a sum of positive squares in 2 ways, for example, as 6790748836 + 609991204 = 82406^2 + 24698^2 .

It is a junction number, because it is equal to n+sod(n) for n = 7400739991 and 7400740009.

It is not an unprimeable number, because it can be changed into a prime (7400740049) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 92509211 + ... + 92509290.

Almost surely, 2^7400740040 is an apocalyptic number.

It is an amenable number.

7400740040 is an abundant number, since it is smaller than the sum of its proper divisors (9250925140).

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

7400740040 is a wasteful number, since it uses less digits than its factorization.

7400740040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 185018512 (or 185018508 counting only the distinct ones).

The product of its (nonzero) digits is 3136, while the sum is 26.

The square root of 7400740040 is about 86027.5539580198. The cubic root of 7400740040 is about 1948.7601182258.

The spelling of 7400740040 in words is "seven billion, four hundred million, seven hundred forty thousand, forty".