1045432420 has 24 divisors (see below), whose sum is σ = 2236833144. Its totient is φ = 410282496.

The previous prime is 1045432411. The next prime is 1045432429. The reversal of 1045432420 is 242345401.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (1045432411) and next prime (1045432429).

It can be written as a sum of positive squares in 4 ways, for example, as 45481536 + 999950884 = 6744^2 + 31622^2 .

It is not an unprimeable number, because it can be changed into a prime (1045432429) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 492069 + ... + 494188.

It is an arithmetic number, because the mean of its divisors is an integer number (93201381).

Almost surely, 2^1045432420 is an apocalyptic number.

1045432420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1045432420 is an abundant number, since it is smaller than the sum of its proper divisors (1191400724).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1045432420 is a wasteful number, since it uses less digits than its factorization.

1045432420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 986319 (or 986317 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 25.

The square root of 1045432420 is about 32333.1473877815. The cubic root of 1045432420 is about 1014.9204140564.

Adding to 1045432420 its reverse (242345401), we get a palindrome (1287777821).

The spelling of 1045432420 in words is "one billion, forty-five million, four hundred thirty-two thousand, four hundred twenty".