4040820667 has 4 divisors (see below), whose sum is σ = 4351653040. Its totient is φ = 3729988296.

The previous prime is 4040820659. The next prime is 4040820671. The reversal of 4040820667 is 7660280404.

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 4040820667 - 2³ = 4040820659 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4040820167) 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, 155416167 + ... + 155416192.

It is an arithmetic number, because the mean of its divisors is an integer number (1087913260).

Almost surely, 2^4040820667 is an apocalyptic number.

4040820667 is a deficient number, since it is larger than the sum of its proper divisors (310832373).

4040820667 is a wasteful number, since it uses less digits than its factorization.

4040820667 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 310832372.

The product of its (nonzero) digits is 64512, while the sum is 37.

The square root of 4040820667 is about 63567.4497443464. The cubic root of 4040820667 is about 1592.7826839351.

It can be divided in two parts, 40408 and 20667, that added together give a triangular number (61075 = T₃₄₉).

The spelling of 4040820667 in words is "four billion, forty million, eight hundred twenty thousand, six hundred sixty-seven".