13421954 has 32 divisors (see below), whose sum is σ = 25643520. Its totient is φ = 5124672.

The previous prime is 13421951. The next prime is 13421981. The reversal of 13421954 is 45912431.

It is a Harshad number since it is a multiple of its sum of digits (29).

It is not an unprimeable number, because it can be changed into a prime (13421951) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 4007 + ... + 6549.

It is an arithmetic number, because the mean of its divisors is an integer number (801360).

Almost surely, 2^13421954 is an apocalyptic number.

13421954 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

13421954 is a deficient number, since it is larger than the sum of its proper divisors (12221566).

13421954 is a wasteful number, since it uses less digits than its factorization.

13421954 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2594.

The product of its digits is 4320, while the sum is 29.

The square root of 13421954 is about 3663.5985042032. The cubic root of 13421954 is about 237.6504177340.

The spelling of 13421954 in words is "thirteen million, four hundred twenty-one thousand, nine hundred fifty-four".