1673749400 has 24 divisors (see below), whose sum is σ = 3891467820. Its totient is φ = 669499680.

The previous prime is 1673749373. The next prime is 1673749409. The reversal of 1673749400 is 49473761.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1673749409) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 4184174 + ... + 4184573.

Almost surely, 2^1673749400 is an apocalyptic number.

1673749400 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1673749400 is an abundant number, since it is smaller than the sum of its proper divisors (2217718420).

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

1673749400 is a wasteful number, since it uses less digits than its factorization.

1673749400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8368763 (or 8368754 counting only the distinct ones).

The product of its (nonzero) digits is 127008, while the sum is 41.

The square root of 1673749400 is about 40911.4824957493. The cubic root of 1673749400 is about 1187.3082297897.

The spelling of 1673749400 in words is "one billion, six hundred seventy-three million, seven hundred forty-nine thousand, four hundred".