1061404431 has 16 divisors (see below), whose sum is σ = 1446640128. Its totient is φ = 691913600.

The previous prime is 1061404427. The next prime is 1061404439. The reversal of 1061404431 is 1344041601.

It is a cyclic number.

It is not a de Polignac number, because 1061404431 - 2² = 1061404427 is a prime.

It is a super-2 number, since 2×1061404431² = 2253158732292867522, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1061404439) 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, 189136 + ... + 194666.

It is an arithmetic number, because the mean of its divisors is an integer number (90415008).

Almost surely, 2^1061404431 is an apocalyptic number.

1061404431 is a deficient number, since it is larger than the sum of its proper divisors (385235697).

1061404431 is a wasteful number, since it uses less digits than its factorization.

1061404431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6942.

The product of its (nonzero) digits is 1152, while the sum is 24.

The square root of 1061404431 is about 32579.2024303849. The cubic root of 1061404431 is about 1020.0629305656.

The spelling of 1061404431 in words is "one billion, sixty-one million, four hundred four thousand, four hundred thirty-one".