15400229 has 8 divisors (see below), whose sum is σ = 16713312. Its totient is φ = 14105520.

The previous prime is 15400223. The next prime is 15400237. The reversal of 15400229 is 92200451.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 15400229 - 2¹² = 15396133 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15400223) 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, 2819 + ... + 6224.

It is an arithmetic number, because the mean of its divisors is an integer number (2089164).

Almost surely, 2^15400229 is an apocalyptic number.

It is an amenable number.

15400229 is a deficient number, since it is larger than the sum of its proper divisors (1313083).

15400229 is a wasteful number, since it uses less digits than its factorization.

15400229 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9187.

The product of its (nonzero) digits is 720, while the sum is 23.

The square root of 15400229 is about 3924.3125512630. The cubic root of 15400229 is about 248.7954266675.

The spelling of 15400229 in words is "fifteen million, four hundred thousand, two hundred twenty-nine".