40678342 has 4 divisors (see below), whose sum is σ = 61017516. Its totient is φ = 20339170.

The previous prime is 40678327. The next prime is 40678349. The reversal of 40678342 is 24387604.

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

It is a super-3 number, since 3×40678342³ (a number of 24 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 40678298 and 40678307.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40678349) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10169584 + ... + 10169587.

It is an arithmetic number, because the mean of its divisors is an integer number (15254379).

Almost surely, 2^40678342 is an apocalyptic number.

40678342 is a deficient number, since it is larger than the sum of its proper divisors (20339174).

40678342 is a wasteful number, since it uses less digits than its factorization.

40678342 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20339173.

The product of its (nonzero) digits is 32256, while the sum is 34.

The square root of 40678342 is about 6377.9575100497. The cubic root of 40678342 is about 343.9176102941.

The spelling of 40678342 in words is "forty million, six hundred seventy-eight thousand, three hundred forty-two".