40346542 has 32 divisors (see below), whose sum is σ = 66515904. Its totient is φ = 18278400.

The previous prime is 40346521. The next prime is 40346543. The reversal of 40346542 is 24564304.

It is a self number, because there is not a number n which added to its sum of digits gives 40346542.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40346543) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 143442 + ... + 143722.

It is an arithmetic number, because the mean of its divisors is an integer number (2078622).

Almost surely, 2^40346542 is an apocalyptic number.

40346542 is a deficient number, since it is larger than the sum of its proper divisors (26169362).

40346542 is a wasteful number, since it uses less digits than its factorization.

40346542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 444.

The product of its (nonzero) digits is 11520, while the sum is 28.

The square root of 40346542 is about 6351.8927887678. The cubic root of 40346542 is about 342.9799816620.

The spelling of 40346542 in words is "forty million, three hundred forty-six thousand, five hundred forty-two".