10031400 has 72 divisors (see below), whose sum is σ = 33694830. Its totient is φ = 2674560.

The previous prime is 10031369. The next prime is 10031407. The reversal of 10031400 is 413001.

It can be written as a sum of positive squares in 3 ways, for example, as 4639716 + 5391684 = 2154^2 + 2322^2 .

It is a tau number, because it is divible by the number of its divisors (72).

It is a Harshad number since it is a multiple of its sum of digits (9).

It is not an unprimeable number, because it can be changed into a prime (10031407) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 987 + ... + 4586.

Almost surely, 2^10031400 is an apocalyptic number.

10031400 is a gapful number since it is divisible by the number (10) 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 10031400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16847415).

10031400 is an abundant number, since it is smaller than the sum of its proper divisors (23663430).

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

10031400 is a wasteful number, since it uses less digits than its factorization.

10031400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5595 (or 5583 counting only the distinct ones).

The product of its (nonzero) digits is 12, while the sum is 9.

The square root of 10031400 is about 3167.2385448526. The cubic root of 10031400 is about 215.6687308909.

Adding to 10031400 its reverse (413001), we get a palindrome (10444401).

The spelling of 10031400 in words is "ten million, thirty-one thousand, four hundred".