1677479042 has 6 divisors (see below), whose sum is σ = 2516305449. Its totient is φ = 838710560.

The previous prime is 1677479039. The next prime is 1677479047. The reversal of 1677479042 is 2409747761.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 1219476241 + 458002801 = 34921^2 + 21401^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=28961.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1677479047) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 43442 + ... + 72402.

Almost surely, 2^1677479042 is an apocalyptic number.

1677479042 is a deficient number, since it is larger than the sum of its proper divisors (838826407).

1677479042 is an frugal number, since it uses more digits than its factorization.

1677479042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57924 (or 28963 counting only the distinct ones).

The product of its (nonzero) digits is 592704, while the sum is 47.

The square root of 1677479042 is about 40957.0389798872. The cubic root of 1677479042 is about 1188.1894747237.

The spelling of 1677479042 in words is "one billion, six hundred seventy-seven million, four hundred seventy-nine thousand, forty-two".