1051430409 has 32 divisors (see below), whose sum is σ = 1634169600. Its totient is φ = 667215360.

The previous prime is 1051430389. The next prime is 1051430423. The reversal of 1051430409 is 9040341501.

It is not a de Polignac number, because 1051430409 - 2⁸ = 1051430153 is a prime.

It is a super-2 number, since 2×1051430409² = 2211011809939814562, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1051430449) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 46137 + ... + 65049.

It is an arithmetic number, because the mean of its divisors is an integer number (51067800).

Almost surely, 2^1051430409 is an apocalyptic number.

It is an amenable number.

1051430409 is a deficient number, since it is larger than the sum of its proper divisors (582739191).

1051430409 is a wasteful number, since it uses less digits than its factorization.

1051430409 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19022 (or 19016 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 27.

The square root of 1051430409 is about 32425.7676701724. The cubic root of 1051430409 is about 1016.8576910369.

The spelling of 1051430409 in words is "one billion, fifty-one million, four hundred thirty thousand, four hundred nine".