40400674 has 4 divisors (see below), whose sum is σ = 60601014. Its totient is φ = 20200336.

The previous prime is 40400603. The next prime is 40400713. The reversal of 40400674 is 47600404.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 26450449 + 13950225 = 5143^2 + 3735^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10100167 + ... + 10100170.

Almost surely, 2^40400674 is an apocalyptic number.

40400674 is a deficient number, since it is larger than the sum of its proper divisors (20200340).

40400674 is a wasteful number, since it uses less digits than its factorization.

40400674 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20200339.

The product of its (nonzero) digits is 2688, while the sum is 25.

The square root of 40400674 is about 6356.1524525455. The cubic root of 40400674 is about 343.1333024867.

The spelling of 40400674 in words is "forty million, four hundred thousand, six hundred seventy-four".