409977042 has 8 divisors (see below), whose sum is σ = 819954096. Its totient is φ = 136659012.

The previous prime is 409977037. The next prime is 409977053. The reversal of 409977042 is 240779904.

It is a sphenic number, since it is the product of 3 distinct primes.

409977042 is an admirable number.

It is a junction number, because it is equal to n+sod(n) for n = 409976985 and 409977003.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 34164748 + ... + 34164759.

It is an arithmetic number, because the mean of its divisors is an integer number (102494262).

Almost surely, 2^409977042 is an apocalyptic number.

409977042 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

409977042 is a wasteful number, since it uses less digits than its factorization.

409977042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68329512.

The product of its (nonzero) digits is 127008, while the sum is 42.

The square root of 409977042 is about 20247.8898159784. The cubic root of 409977042 is about 742.8820177040.

The spelling of 409977042 in words is "four hundred nine million, nine hundred seventy-seven thousand, forty-two".