103440646 has 4 divisors (see below), whose sum is σ = 155160972. Its totient is φ = 51720322.

The previous prime is 103440619. The next prime is 103440713. The reversal of 103440646 is 646044301.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25860160 + ... + 25860163.

It is an arithmetic number, because the mean of its divisors is an integer number (38790243).

Almost surely, 2^103440646 is an apocalyptic number.

103440646 is a deficient number, since it is larger than the sum of its proper divisors (51720326).

103440646 is an equidigital number, since it uses as much as digits as its factorization.

103440646 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51720325.

The product of its (nonzero) digits is 6912, while the sum is 28.

The square root of 103440646 is about 10170.5774663979. The cubic root of 103440646 is about 469.4223263409.

Adding to 103440646 its reverse (646044301), we get a palindrome (749484947).

The spelling of 103440646 in words is "one hundred three million, four hundred forty thousand, six hundred forty-six".