421353045 has 24 divisors (see below), whose sum is σ = 732860856. Its totient is φ = 223947648.

The previous prime is 421353011. The next prime is 421353059. The reversal of 421353045 is 540353124.

It can be written as a sum of positive squares in 4 ways, for example, as 199402641 + 221950404 = 14121^2 + 14898^2 .

It is not a de Polignac number, because 421353045 - 2¹³ = 421344853 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2794 + ... + 29163.

It is an arithmetic number, because the mean of its divisors is an integer number (30535869).

Almost surely, 2^421353045 is an apocalyptic number.

421353045 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

It is an amenable number.

421353045 is a deficient number, since it is larger than the sum of its proper divisors (311507811).

421353045 is a wasteful number, since it uses less digits than its factorization.

421353045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32261 (or 32258 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 27.

The square root of 421353045 is about 20526.8859060501. The cubic root of 421353045 is about 749.6905656848.

The spelling of 421353045 in words is "four hundred twenty-one million, three hundred fifty-three thousand, forty-five".