13801431 has 16 divisors (see below), whose sum is σ = 21152768. Its totient is φ = 7840800.

The previous prime is 13801393. The next prime is 13801483. The reversal of 13801431 is 13410831.

It is not a de Polignac number, because 13801431 - 2⁶ = 13801367 is a prime.

It is a super-2 number, since 2×13801431² = 380958995295522, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a junction number, because it is equal to n+sod(n) for n = 13801398 and 13801407.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13802431) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1986 + ... + 5616.

It is an arithmetic number, because the mean of its divisors is an integer number (1322048).

Almost surely, 2^13801431 is an apocalyptic number.

13801431 is a deficient number, since it is larger than the sum of its proper divisors (7351337).

13801431 is a wasteful number, since it uses less digits than its factorization.

13801431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3822.

The product of its (nonzero) digits is 288, while the sum is 21.

The square root of 13801431 is about 3715.0277253340. The cubic root of 13801431 is about 239.8693212201.

The spelling of 13801431 in words is "thirteen million, eight hundred one thousand, four hundred thirty-one".