420526069 has 8 divisors (see below), whose sum is σ = 443330240. Its totient is φ = 397789056.

The previous prime is 420526049. The next prime is 420526079. The reversal of 420526069 is 960625024.

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 420526069 - 2⁹ = 420525557 is a prime.

It is a super-2 number, since 2×420526069² = 353684349417185522, 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 (420526039) 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, 3657 + ... + 29230.

It is an arithmetic number, because the mean of its divisors is an integer number (55416280).

Almost surely, 2^420526069 is an apocalyptic number.

It is an amenable number.

420526069 is a deficient number, since it is larger than the sum of its proper divisors (22804171).

420526069 is a wasteful number, since it uses less digits than its factorization.

420526069 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33579.

The product of its (nonzero) digits is 25920, while the sum is 34.

The square root of 420526069 is about 20506.7322847888. The cubic root of 420526069 is about 749.1997799824.

The spelling of 420526069 in words is "four hundred twenty million, five hundred twenty-six thousand, sixty-nine".