674120400 has 60 divisors (see below), whose sum is σ = 2159436192. Its totient is φ = 179765120.

The previous prime is 674120387. The next prime is 674120411. The reversal of 674120400 is 4021476.

It is a tau number, because it is divible by the number of its divisors (60).

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 279684 + ... + 282083.

Almost surely, 2^674120400 is an apocalyptic number.

674120400 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

674120400 is an abundant number, since it is smaller than the sum of its proper divisors (1485315792).

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

674120400 is a wasteful number, since it uses less digits than its factorization.

674120400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 561788 (or 561777 counting only the distinct ones).

The product of its (nonzero) digits is 1344, while the sum is 24.

The square root of 674120400 is about 25963.8286853076. The cubic root of 674120400 is about 876.8241238345.

Adding to 674120400 its reverse (4021476), we get a palindrome (678141876).

The spelling of 674120400 in words is "six hundred seventy-four million, one hundred twenty thousand, four hundred".