40400074 has 32 divisors (see below), whose sum is σ = 73664640. Its totient is φ = 16363200.

The previous prime is 40400071. The next prime is 40400077. The reversal of 40400074 is 47000404.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (40400071) and next prime (40400077).

It is not an unprimeable number, because it can be changed into a prime (40400071) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5859 + ... + 10729.

It is an arithmetic number, because the mean of its divisors is an integer number (2302020).

Almost surely, 2^40400074 is an apocalyptic number.

40400074 is a deficient number, since it is larger than the sum of its proper divisors (33264566).

40400074 is a wasteful number, since it uses less digits than its factorization.

40400074 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4926.

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

The square root of 40400074 is about 6356.1052540058. The cubic root of 40400074 is about 343.1316038269.

Adding to 40400074 its reverse (47000404), we get a palindrome (87400478).

The spelling of 40400074 in words is "forty million, four hundred thousand, seventy-four".