40284379 has 8 divisors (see below), whose sum is σ = 41477760. Its totient is φ = 39096576.

The previous prime is 40284359. The next prime is 40284401. The reversal of 40284379 is 97348204.

It is a happy number.

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 40284379 - 2⁵ = 40284347 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (37).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40284319) 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, 16587 + ... + 18859.

It is an arithmetic number, because the mean of its divisors is an integer number (5184720).

Almost surely, 2^40284379 is an apocalyptic number.

40284379 is a deficient number, since it is larger than the sum of its proper divisors (1193381).

40284379 is a wasteful number, since it uses less digits than its factorization.

40284379 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2789.

The product of its (nonzero) digits is 48384, while the sum is 37.

The square root of 40284379 is about 6346.9976366783. The cubic root of 40284379 is about 342.8037449661.

The spelling of 40284379 in words is "forty million, two hundred eighty-four thousand, three hundred seventy-nine".