40377644 has 6 divisors (see below), whose sum is σ = 70660884. Its totient is φ = 20188820.

The previous prime is 40377637. The next prime is 40377647. The reversal of 40377644 is 44677304.

It is not an unprimeable number, because it can be changed into a prime (40377647) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5047202 + ... + 5047209.

It is an arithmetic number, because the mean of its divisors is an integer number (11776814).

Almost surely, 2^40377644 is an apocalyptic number.

It is an amenable number.

40377644 is a deficient number, since it is larger than the sum of its proper divisors (30283240).

40377644 is a wasteful number, since it uses less digits than its factorization.

40377644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10094415 (or 10094413 counting only the distinct ones).

The product of its (nonzero) digits is 56448, while the sum is 35.

The square root of 40377644 is about 6354.3405637407. The cubic root of 40377644 is about 343.0680901919.

The spelling of 40377644 in words is "forty million, three hundred seventy-seven thousand, six hundred forty-four".