40732379 has 4 divisors (see below), whose sum is σ = 42503376. Its totient is φ = 38961384.

The previous prime is 40732369. The next prime is 40732381. The reversal of 40732379 is 97323704.

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

It is a cyclic number.

It is not a de Polignac number, because 40732379 - 2¹² = 40728283 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40732369) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 885464 + ... + 885509.

It is an arithmetic number, because the mean of its divisors is an integer number (10625844).

Almost surely, 2^40732379 is an apocalyptic number.

40732379 is a deficient number, since it is larger than the sum of its proper divisors (1770997).

40732379 is a wasteful number, since it uses less digits than its factorization.

40732379 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1770996.

The product of its (nonzero) digits is 31752, while the sum is 35.

The square root of 40732379 is about 6382.1923349269. The cubic root of 40732379 is about 344.0698293207.

The spelling of 40732379 in words is "forty million, seven hundred thirty-two thousand, three hundred seventy-nine".