1042352421 has 16 divisors (see below), whose sum is σ = 1531165248. Its totient is φ = 625472000.

The previous prime is 1042352411. The next prime is 1042352453. The reversal of 1042352421 is 1242532401.

It is a cyclic number.

It is not a de Polignac number, because 1042352421 - 2⁶ = 1042352357 is a prime.

It is a super-2 number, since 2×1042352421² = 2172997139129122482, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1042352391 and 1042352400.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1042352411) 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, 153036 + ... + 159701.

It is an arithmetic number, because the mean of its divisors is an integer number (95697828).

Almost surely, 2^1042352421 is an apocalyptic number.

1042352421 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1042352421 is a deficient number, since it is larger than the sum of its proper divisors (488812827).

1042352421 is a wasteful number, since it uses less digits than its factorization.

1042352421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 312852.

The product of its (nonzero) digits is 1920, while the sum is 24.

The square root of 1042352421 is about 32285.4831309677. The cubic root of 1042352421 is about 1013.9227316058.

Adding to 1042352421 its reverse (1242532401), we get a palindrome (2284884822).

The spelling of 1042352421 in words is "one billion, forty-two million, three hundred fifty-two thousand, four hundred twenty-one".