673557042 has 16 divisors (see below), whose sum is σ = 1347645600. Its totient is φ = 224430432.

The previous prime is 673557041. The next prime is 673557083. The reversal of 673557042 is 240755376.

It is not an unprimeable number, because it can be changed into a prime (673557041) 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, 4603 + ... + 36990.

It is an arithmetic number, because the mean of its divisors is an integer number (84227850).

Almost surely, 2^673557042 is an apocalyptic number.

673557042 is an abundant number, since it is smaller than the sum of its proper divisors (674088558).

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

673557042 is a wasteful number, since it uses less digits than its factorization.

673557042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44297.

The product of its (nonzero) digits is 176400, while the sum is 39.

The square root of 673557042 is about 25952.9775170403. The cubic root of 673557042 is about 876.5798037052.

The spelling of 673557042 in words is "six hundred seventy-three million, five hundred fifty-seven thousand, forty-two".