10400340 has 48 divisors (see below), whose sum is σ = 29437632. Its totient is φ = 2743296.

The previous prime is 10400339. The next prime is 10400389. The reversal of 10400340 is 4300401.

10400340 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4927 + ... + 6713.

It is an arithmetic number, because the mean of its divisors is an integer number (613284).

Almost surely, 2^10400340 is an apocalyptic number.

10400340 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 10400340, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14718816).

10400340 is an abundant number, since it is smaller than the sum of its proper divisors (19037292).

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

10400340 is a wasteful number, since it uses less digits than its factorization.

10400340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1896 (or 1894 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 12.

The square root of 10400340 is about 3224.9558136508. The cubic root of 10400340 is about 218.2809552631.

Adding to 10400340 its reverse (4300401), we get a palindrome (14700741).

The spelling of 10400340 in words is "ten million, four hundred thousand, three hundred forty".