13640950 has 24 divisors (see below), whose sum is σ = 25556400. Its totient is φ = 5416800.

The previous prime is 13640947. The next prime is 13640989. The reversal of 13640950 is 5904631.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6535 + ... + 8365.

It is an arithmetic number, because the mean of its divisors is an integer number (1064850).

Almost surely, 2^13640950 is an apocalyptic number.

13640950 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

13640950 is a deficient number, since it is larger than the sum of its proper divisors (11915450).

13640950 is a wasteful number, since it uses less digits than its factorization.

13640950 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1992 (or 1987 counting only the distinct ones).

The product of its (nonzero) digits is 3240, while the sum is 28.

The square root of 13640950 is about 3693.3656737453. The cubic root of 13640950 is about 238.9359725315.

It can be divided in two parts, 1 and 3640950, that added together give a triangular number (3640951 = T₂₆₉₈).

The spelling of 13640950 in words is "thirteen million, six hundred forty thousand, nine hundred fifty".