10400380 has 12 divisors (see below), whose sum is σ = 21840840. Its totient is φ = 4160144.

The previous prime is 10400339. The next prime is 10400389. The reversal of 10400380 is 8300401.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10400389) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 259990 + ... + 260029.

It is an arithmetic number, because the mean of its divisors is an integer number (1820070).

Almost surely, 2^10400380 is an apocalyptic number.

10400380 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10400380 is an abundant number, since it is smaller than the sum of its proper divisors (11440460).

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

10400380 is a wasteful number, since it uses less digits than its factorization.

10400380 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 520028 (or 520026 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 16.

The square root of 10400380 is about 3224.9620152802. The cubic root of 10400380 is about 218.2812351010.

Adding to 10400380 its reverse (8300401), we get a palindrome (18700781).

The spelling of 10400380 in words is "ten million, four hundred thousand, three hundred eighty".