674541400 has 96 divisors (see below), whose sum is σ = 1743638400. Its totient is φ = 240998400.

The previous prime is 674541397. The next prime is 674541451. The reversal of 674541400 is 4145476.

It is a super-2 number, since 2×674541400² = 910012200627920000, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is a nialpdrome in base 13.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 76416 + ... + 84784.

It is an arithmetic number, because the mean of its divisors is an integer number (18162900).

Almost surely, 2^674541400 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 674541400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (871819200).

674541400 is an abundant number, since it is smaller than the sum of its proper divisors (1069097000).

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

674541400 is a wasteful number, since it uses less digits than its factorization.

674541400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8429 (or 8420 counting only the distinct ones).

The product of its (nonzero) digits is 13440, while the sum is 31.

The square root of 674541400 is about 25971.9348528368. The cubic root of 674541400 is about 877.0066165255.

Adding to 674541400 its reverse (4145476), we get a palindrome (678686876).

The spelling of 674541400 in words is "six hundred seventy-four million, five hundred forty-one thousand, four hundred".