13945970 has 16 divisors (see below), whose sum is σ = 25913088. Its totient is φ = 5398320.

The previous prime is 13945969. The next prime is 13945973. The reversal of 13945970 is 7954931.

It is a happy number.

13945970 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (13945973) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22184 + ... + 22803.

It is an arithmetic number, because the mean of its divisors is an integer number (1619568).

Almost surely, 2^13945970 is an apocalyptic number.

13945970 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

13945970 is a deficient number, since it is larger than the sum of its proper divisors (11967118).

13945970 is a wasteful number, since it uses less digits than its factorization.

13945970 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45025.

The product of its (nonzero) digits is 34020, while the sum is 38.

The square root of 13945970 is about 3734.4303447782. The cubic root of 13945970 is about 240.7037791191.

The spelling of 13945970 in words is "thirteen million, nine hundred forty-five thousand, nine hundred seventy".