40342734 has 24 divisors (see below), whose sum is σ = 92551680. Its totient is φ = 12656448.

The previous prime is 40342723. The next prime is 40342739. The reversal of 40342734 is 43724304.

It is a junction number, because it is equal to n+sod(n) for n = 40342698 and 40342707.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40342739) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 65614 + ... + 66225.

It is an arithmetic number, because the mean of its divisors is an integer number (3856320).

Almost surely, 2^40342734 is an apocalyptic number.

40342734 is an abundant number, since it is smaller than the sum of its proper divisors (52208946).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

40342734 is a wasteful number, since it uses less digits than its factorization.

40342734 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 131864 (or 131861 counting only the distinct ones).

The product of its (nonzero) digits is 8064, while the sum is 27.

The square root of 40342734 is about 6351.5930285244. The cubic root of 40342734 is about 342.9691909077.

The spelling of 40342734 in words is "forty million, three hundred forty-two thousand, seven hundred thirty-four".