421090735 has 16 divisors (see below), whose sum is σ = 548162496. Its totient is φ = 308683008.

The previous prime is 421090687. The next prime is 421090751. The reversal of 421090735 is 537090124.

It is a cyclic number.

It is not a de Polignac number, because 421090735 - 2⁹ = 421090223 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 421090697 and 421090706.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14739 + ... + 32548.

It is an arithmetic number, because the mean of its divisors is an integer number (34260156).

Almost surely, 2^421090735 is an apocalyptic number.

421090735 is a deficient number, since it is larger than the sum of its proper divisors (127071761).

421090735 is a wasteful number, since it uses less digits than its factorization.

421090735 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47442.

The product of its (nonzero) digits is 7560, while the sum is 31.

The square root of 421090735 is about 20520.4954862206. The cubic root of 421090735 is about 749.5349620829.

The spelling of 421090735 in words is "four hundred twenty-one million, ninety thousand, seven hundred thirty-five".