40346745 has 8 divisors (see below), whose sum is σ = 64554816. Its totient is φ = 21518256.

The previous prime is 40346723. The next prime is 40346749. The reversal of 40346745 is 54764304.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 40346745 - 2⁷ = 40346617 is a prime.

It is not an unprimeable number, because it can be changed into a prime (40346749) 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, 1344877 + ... + 1344906.

It is an arithmetic number, because the mean of its divisors is an integer number (8069352).

Almost surely, 2^40346745 is an apocalyptic number.

It is an amenable number.

40346745 is a deficient number, since it is larger than the sum of its proper divisors (24208071).

40346745 is a wasteful number, since it uses less digits than its factorization.

40346745 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2689791.

The product of its (nonzero) digits is 40320, while the sum is 33.

The square root of 40346745 is about 6351.9087682365. The cubic root of 40346745 is about 342.9805568853.

The spelling of 40346745 in words is "forty million, three hundred forty-six thousand, seven hundred forty-five".