40667369 has 8 divisors (see below), whose sum is σ = 41136480. Its totient is φ = 40201056.

The previous prime is 40667357. The next prime is 40667399. The reversal of 40667369 is 96376604.

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 a de Polignac number, because none of the positive numbers 2^k-40667369 is a prime.

It is a super-2 number, since 2×40667369² = 3307669802764322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40667399) 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, 42197 + ... + 43149.

It is an arithmetic number, because the mean of its divisors is an integer number (5142060).

Almost surely, 2^40667369 is an apocalyptic number.

It is an amenable number.

40667369 is a deficient number, since it is larger than the sum of its proper divisors (469111).

40667369 is a wasteful number, since it uses less digits than its factorization.

40667369 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1399.

The product of its (nonzero) digits is 163296, while the sum is 41.

The square root of 40667369 is about 6377.0972236591. The cubic root of 40667369 is about 343.8866835393.

The spelling of 40667369 in words is "forty million, six hundred sixty-seven thousand, three hundred sixty-nine".