1052431401 has 16 divisors (see below), whose sum is σ = 1673432064. Its totient is φ = 575241744.

The previous prime is 1052431399. The next prime is 1052431421. The reversal of 1052431401 is 1041342501.

It is not a de Polignac number, because 1052431401 - 2¹ = 1052431399 is a prime.

It is a super-2 number, since 2×1052431401² = 2215223707621645602, which contains 22 as substring.

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

It is not an unprimeable number, because it can be changed into a prime (1052431421) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1088991 + ... + 1089956.

It is an arithmetic number, because the mean of its divisors is an integer number (104589504).

Almost surely, 2^1052431401 is an apocalyptic number.

It is an amenable number.

1052431401 is a deficient number, since it is larger than the sum of its proper divisors (621000663).

1052431401 is a wasteful number, since it uses less digits than its factorization.

1052431401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2178980.

The product of its (nonzero) digits is 480, while the sum is 21.

The square root of 1052431401 is about 32441.1991301185. The cubic root of 1052431401 is about 1017.1802812794.

Adding to 1052431401 its reverse (1041342501), we get a palindrome (2093773902).

Subtracting from 1052431401 its reverse (1041342501), we obtain a square (11088900 = 3330²).

The spelling of 1052431401 in words is "one billion, fifty-two million, four hundred thirty-one thousand, four hundred one".