1023421445 has 16 divisors (see below), whose sum is σ = 1269665280. Its totient is φ = 791112000.

The previous prime is 1023421439. The next prime is 1023421447. The reversal of 1023421445 is 5441243201.

It is not a de Polignac number, because 1023421445 - 2²² = 1019227141 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1023421447) 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, 103946 + ... + 113364.

It is an arithmetic number, because the mean of its divisors is an integer number (79354080).

Almost surely, 2^1023421445 is an apocalyptic number.

It is an amenable number.

1023421445 is a deficient number, since it is larger than the sum of its proper divisors (246243835).

1023421445 is an equidigital number, since it uses as much as digits as its factorization.

1023421445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10156.

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

The square root of 1023421445 is about 31990.9588008862. The cubic root of 1023421445 is about 1007.7469776900.

Adding to 1023421445 its reverse (5441243201), we get a palindrome (6464664646).

The spelling of 1023421445 in words is "one billion, twenty-three million, four hundred twenty-one thousand, four hundred forty-five".