40403248 has 20 divisors (see below), whose sum is σ = 79002880. Its totient is φ = 20015424.

The previous prime is 40403243. The next prime is 40403257. The reversal of 40403248 is 84230404.

It is not an unprimeable number, because it can be changed into a prime (40403243) 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, 9840 + ... + 13327.

It is an arithmetic number, because the mean of its divisors is an integer number (3950144).

Almost surely, 2^40403248 is an apocalyptic number.

It is an amenable number.

40403248 is a deficient number, since it is larger than the sum of its proper divisors (38599632).

40403248 is a wasteful number, since it uses less digits than its factorization.

40403248 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23284 (or 23278 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 25.

The square root of 40403248 is about 6356.3549303040. The cubic root of 40403248 is about 343.1405895463.

The spelling of 40403248 in words is "forty million, four hundred three thousand, two hundred forty-eight".