440670077 has 4 divisors (see below), whose sum is σ = 442646400. Its totient is φ = 438693756.

The previous prime is 440670047. The next prime is 440670169. The reversal of 440670077 is 770076044.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 440670077 - 2²² = 436475773 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 (440670007) 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, 987827 + ... + 988272.

It is an arithmetic number, because the mean of its divisors is an integer number (110661600).

Almost surely, 2^440670077 is an apocalyptic number.

It is an amenable number.

440670077 is a deficient number, since it is larger than the sum of its proper divisors (1976323).

440670077 is a wasteful number, since it uses less digits than its factorization.

440670077 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1976322.

The product of its (nonzero) digits is 32928, while the sum is 35.

The square root of 440670077 is about 20992.1432207386. The cubic root of 440670077 is about 760.9763979826.

The spelling of 440670077 in words is "four hundred forty million, six hundred seventy thousand, seventy-seven".