40347406 has 16 divisors (see below), whose sum is σ = 66410928. Its totient is φ = 18232000.

The previous prime is 40347401. The next prime is 40347407. The reversal of 40347406 is 60474304.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40347401) 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, 1495 + ... + 9106.

It is an arithmetic number, because the mean of its divisors is an integer number (4150683).

Almost surely, 2^40347406 is an apocalyptic number.

40347406 is a deficient number, since it is larger than the sum of its proper divisors (26063522).

40347406 is a wasteful number, since it uses less digits than its factorization.

40347406 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10787.

The product of its (nonzero) digits is 8064, while the sum is 28.

The square root of 40347406 is about 6351.9607996272. The cubic root of 40347406 is about 342.9824298899.

The spelling of 40347406 in words is "forty million, three hundred forty-seven thousand, four hundred six".