421702045 has 8 divisors (see below), whose sum is σ = 506195424. Its totient is φ = 337259664.

The previous prime is 421702031. The next prime is 421702049. The reversal of 421702045 is 540207124.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 421702045 - 2⁵ = 421702013 is a prime.

It is a super-2 number, since 2×421702045² = 355665229514364050, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (421702049) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8742 + ... + 30328.

It is an arithmetic number, because the mean of its divisors is an integer number (63274428).

Almost surely, 2^421702045 is an apocalyptic number.

It is an amenable number.

421702045 is a deficient number, since it is larger than the sum of its proper divisors (84493379).

421702045 is a wasteful number, since it uses less digits than its factorization.

421702045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25499.

The product of its (nonzero) digits is 2240, while the sum is 25.

The square root of 421702045 is about 20535.3851923941. The cubic root of 421702045 is about 749.8974941389.

Adding to 421702045 its reverse (540207124), we get a palindrome (961909169).

The spelling of 421702045 in words is "four hundred twenty-one million, seven hundred two thousand, forty-five".