1045432421 has 16 divisors (see below), whose sum is σ = 1226050560. Its totient is φ = 881207280.

The previous prime is 1045432411. The next prime is 1045432429. The reversal of 1045432421 is 1242345401.

It is a cyclic number.

It is not a de Polignac number, because 1045432421 - 2¹⁸ = 1045170277 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1045432429) 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, 43391 + ... + 63036.

It is an arithmetic number, because the mean of its divisors is an integer number (76628160).

Almost surely, 2^1045432421 is an apocalyptic number.

1045432421 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1045432421 is a deficient number, since it is larger than the sum of its proper divisors (180618139).

1045432421 is a wasteful number, since it uses less digits than its factorization.

1045432421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 106504.

The product of its (nonzero) digits is 3840, while the sum is 26.

The square root of 1045432421 is about 32333.1474032455. The cubic root of 1045432421 is about 1014.9204143800.

Adding to 1045432421 its reverse (1242345401), we get a palindrome (2287777822).

It can be divided in two parts, 10454 and 32421, that added together give a cube (42875 = 35³).

The spelling of 1045432421 in words is "one billion, forty-five million, four hundred thirty-two thousand, four hundred twenty-one".