40479977 has 8 divisors (see below), whose sum is σ = 42382464. Its totient is φ = 38589408.

The previous prime is 40479973. The next prime is 40480003. The reversal of 40479977 is 77997404.

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 40479977 - 2² = 40479973 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40479973) 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, 4388 + ... + 10010.

It is an arithmetic number, because the mean of its divisors is an integer number (5297808).

Almost surely, 2^40479977 is an apocalyptic number.

It is an amenable number.

40479977 is a deficient number, since it is larger than the sum of its proper divisors (1902487).

40479977 is a wasteful number, since it uses less digits than its factorization.

40479977 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5959.

The product of its (nonzero) digits is 444528, while the sum is 47.

The square root of 40479977 is about 6362.3876807375. The cubic root of 40479977 is about 343.3576693300.

The spelling of 40479977 in words is "forty million, four hundred seventy-nine thousand, nine hundred seventy-seven".