40007073734 has 4 divisors (see below), whose sum is σ = 60010610604. Its totient is φ = 20003536866.

The previous prime is 40007073649. The next prime is 40007073737. The reversal of 40007073734 is 43737070004.

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

It is a junction number, because it is equal to n+sod(n) for n = 40007073694 and 40007073703.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40007073737) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10001768432 + ... + 10001768435.

It is an arithmetic number, because the mean of its divisors is an integer number (15002652651).

Almost surely, 2^40007073734 is an apocalyptic number.

40007073734 is a deficient number, since it is larger than the sum of its proper divisors (20003536870).

40007073734 is a wasteful number, since it uses less digits than its factorization.

40007073734 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20003536869.

The product of its (nonzero) digits is 49392, while the sum is 35.

The spelling of 40007073734 in words is "forty billion, seven million, seventy-three thousand, seven hundred thirty-four".