40077734 has 16 divisors (see below), whose sum is σ = 61947600. Its totient is φ = 19432224.

The previous prime is 40077733. The next prime is 40077749. The reversal of 40077734 is 43777004.

It is a happy number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 40077734.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40077733) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 27332 + ... + 28760.

It is an arithmetic number, because the mean of its divisors is an integer number (3871725).

Almost surely, 2^40077734 is an apocalyptic number.

40077734 is a deficient number, since it is larger than the sum of its proper divisors (21869866).

40077734 is a wasteful number, since it uses less digits than its factorization.

40077734 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1847.

The product of its (nonzero) digits is 16464, while the sum is 32.

The square root of 40077734 is about 6330.6977498535. The cubic root of 40077734 is about 342.2165847647.

The spelling of 40077734 in words is "forty million, seventy-seven thousand, seven hundred thirty-four".