420471461 has 4 divisors (see below), whose sum is σ = 420641952. Its totient is φ = 420300972.

The previous prime is 420471449. The next prime is 420471503. The reversal of 420471461 is 164174024.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 420471461 - 2²² = 416277157 is a prime.

It is a super-3 number, since 3×420471461³ (a number of 27 digits) contains 333 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 (420471061) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 81491 + ... + 86496.

It is an arithmetic number, because the mean of its divisors is an integer number (105160488).

Almost surely, 2^420471461 is an apocalyptic number.

It is an amenable number.

420471461 is a deficient number, since it is larger than the sum of its proper divisors (170491).

420471461 is a wasteful number, since it uses less digits than its factorization.

420471461 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 170490.

The product of its (nonzero) digits is 5376, while the sum is 29.

The square root of 420471461 is about 20505.4007763808. The cubic root of 420471461 is about 749.1673491173.

The spelling of 420471461 in words is "four hundred twenty million, four hundred seventy-one thousand, four hundred sixty-one".