40347434 has 16 divisors (see below), whose sum is σ = 61248096. Its totient is φ = 19933200.

The previous prime is 40347407. The next prime is 40347473. The reversal of 40347434 is 43474304.

It is a junction number, because it is equal to n+sod(n) for n = 40347397 and 40347406.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 81929 + ... + 82419.

It is an arithmetic number, because the mean of its divisors is an integer number (3828006).

Almost surely, 2^40347434 is an apocalyptic number.

40347434 is a deficient number, since it is larger than the sum of its proper divisors (20900662).

40347434 is a wasteful number, since it uses less digits than its factorization.

40347434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 901.

The product of its (nonzero) digits is 16128, while the sum is 29.

The square root of 40347434 is about 6351.9630036706. The cubic root of 40347434 is about 342.9825092300.

The spelling of 40347434 in words is "forty million, three hundred forty-seven thousand, four hundred thirty-four".