4040740 has 24 divisors (see below), whose sum is σ = 9257472. Its totient is φ = 1469280.

The previous prime is 4040737. The next prime is 4040741. The reversal of 4040740 is 470404.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (4040741) 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, 8964 + ... + 9403.

It is an arithmetic number, because the mean of its divisors is an integer number (385728).

Almost surely, 2^4040740 is an apocalyptic number.

It is an amenable number.

4040740 is an abundant number, since it is smaller than the sum of its proper divisors (5216732).

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

4040740 is a wasteful number, since it uses less digits than its factorization.

4040740 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18387 (or 18385 counting only the distinct ones).

The product of its (nonzero) digits is 448, while the sum is 19.

The square root of 4040740 is about 2010.1591976756. The cubic root of 4040740 is about 159.2772084945.

The spelling of 4040740 in words is "four million, forty thousand, seven hundred forty".