440040061 has 8 divisors (see below), whose sum is σ = 443520000. Its totient is φ = 436567440.

The previous prime is 440040049. The next prime is 440040077. The reversal of 440040061 is 160040044.

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 440040061 - 2¹³ = 440031869 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (440040011) 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, 207396 + ... + 209506.

It is an arithmetic number, because the mean of its divisors is an integer number (55440000).

Almost surely, 2^440040061 is an apocalyptic number.

It is an amenable number.

440040061 is a deficient number, since it is larger than the sum of its proper divisors (3479939).

440040061 is a wasteful number, since it uses less digits than its factorization.

440040061 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3659.

The product of its (nonzero) digits is 384, while the sum is 19.

The square root of 440040061 is about 20977.1318582880. The cubic root of 440040061 is about 760.6135747970.

The spelling of 440040061 in words is "four hundred forty million, forty thousand, sixty-one".