700043400 has 216 divisors, whose sum is σ = 2735156970. Its totient is φ = 159989760.

The previous prime is 700043347. The next prime is 700043417. The reversal of 700043400 is 4340007.

It can be written as a sum of positive squares in 3 ways, for example, as 675896004 + 24147396 = 25998^2 + 4914^2 .

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 53 ways as a sum of consecutive naturals, for example, 84232 + ... + 92168.

Almost surely, 2^700043400 is an apocalyptic number.

700043400 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 700043400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1367578485).

700043400 is an abundant number, since it is smaller than the sum of its proper divisors (2035113570).

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

700043400 is a wasteful number, since it uses less digits than its factorization.

700043400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7973 (or 7954 counting only the distinct ones).

The product of its (nonzero) digits is 336, while the sum is 18.

The square root of 700043400 is about 26458.3332808399. Note that the first 3 decimals coincide. The cubic root of 700043400 is about 887.9223513794.

Adding to 700043400 its reverse (4340007), we get a palindrome (704383407).

The spelling of 700043400 in words is "seven hundred million, forty-three thousand, four hundred".