40379497 has 8 divisors (see below), whose sum is σ = 40921992. Its totient is φ = 39840000.

The previous prime is 40379491. The next prime is 40379527. The reversal of 40379497 is 79497304.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 35868121 + 4511376 = 5989^2 + 2124^2 .

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-40379497 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40379491) 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, 40003 + ... + 40999.

It is an arithmetic number, because the mean of its divisors is an integer number (5115249).

Almost surely, 2^40379497 is an apocalyptic number.

It is an amenable number.

40379497 is a deficient number, since it is larger than the sum of its proper divisors (542495).

40379497 is a wasteful number, since it uses less digits than its factorization.

40379497 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1499.

The product of its (nonzero) digits is 190512, while the sum is 43.

The square root of 40379497 is about 6354.4863679136. The cubic root of 40379497 is about 343.0733381079.

The spelling of 40379497 in words is "forty million, three hundred seventy-nine thousand, four hundred ninety-seven".