40440896 has 14 divisors (see below), whose sum is σ = 80250030. Its totient is φ = 20220416.

The previous prime is 40440871. The next prime is 40440899. The reversal of 40440896 is 69804404.

It can be written as a sum of positive squares in only one way, i.e., 36966400 + 3474496 = 6080^2 + 1864^2 .

It is not an unprimeable number, because it can be changed into a prime (40440899) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 315881 + ... + 316008.

It is an arithmetic number, because the mean of its divisors is an integer number (5732145).

Almost surely, 2^40440896 is an apocalyptic number.

It is an amenable number.

40440896 is a deficient number, since it is larger than the sum of its proper divisors (39809134).

40440896 is an equidigital number, since it uses as much as digits as its factorization.

40440896 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 631901 (or 631891 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 35.

The square root of 40440896 is about 6359.3156864556. The cubic root of 40440896 is about 343.2471366442.

The spelling of 40440896 in words is "forty million, four hundred forty thousand, eight hundred ninety-six".