1404181431 has 12 divisors (see below), whose sum is σ = 2039595480. Its totient is φ = 930890160.

The previous prime is 1404181411. The next prime is 1404181433. The reversal of 1404181431 is 1341814041.

It is not a de Polignac number, because 1404181431 - 2²¹ = 1402084279 is a prime.

It is a super-2 number, since 2×1404181431² = 3943450982330415522, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1404181395 and 1404181404.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1404181433) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 434200 + ... + 437421.

It is an arithmetic number, because the mean of its divisors is an integer number (169966290).

Almost surely, 2^1404181431 is an apocalyptic number.

1404181431 is a deficient number, since it is larger than the sum of its proper divisors (635414049).

1404181431 is a wasteful number, since it uses less digits than its factorization.

1404181431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 871806 (or 871803 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 27.

The square root of 1404181431 is about 37472.4089297712. The cubic root of 1404181431 is about 1119.8015781039.

Adding to 1404181431 its reverse (1341814041), we get a palindrome (2745995472).

The spelling of 1404181431 in words is "one billion, four hundred four million, one hundred eighty-one thousand, four hundred thirty-one".