40290379 has 8 divisors (see below), whose sum is σ = 40957520. Its totient is φ = 39626496.

The previous prime is 40290377. The next prime is 40290409. The reversal of 40290379 is 97309204.

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

It is a cyclic number.

It is not a de Polignac number, because 40290379 - 2¹ = 40290377 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40290377) 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, 39427 + ... + 40435.

It is an arithmetic number, because the mean of its divisors is an integer number (5119690).

Almost surely, 2^40290379 is an apocalyptic number.

40290379 is a deficient number, since it is larger than the sum of its proper divisors (667141).

40290379 is a wasteful number, since it uses less digits than its factorization.

40290379 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1629.

The product of its (nonzero) digits is 13608, while the sum is 34.

The square root of 40290379 is about 6347.4702835067. The cubic root of 40290379 is about 342.8207633110.

The spelling of 40290379 in words is "forty million, two hundred ninety thousand, three hundred seventy-nine".