469750021 has 4 divisors (see below), whose sum is σ = 505884652. Its totient is φ = 433615392.

The previous prime is 469750003. The next prime is 469750049. The reversal of 469750021 is 120057964.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 24117921 + 445632100 = 4911^2 + 21110^2 .

It is a cyclic number.

It is not a de Polignac number, because 469750021 - 2⁵ = 469749989 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (469750051) 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, 18067296 + ... + 18067321.

It is an arithmetic number, because the mean of its divisors is an integer number (126471163).

Almost surely, 2^469750021 is an apocalyptic number.

It is an amenable number.

469750021 is a deficient number, since it is larger than the sum of its proper divisors (36134631).

469750021 is a wasteful number, since it uses less digits than its factorization.

469750021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36134630.

The product of its (nonzero) digits is 15120, while the sum is 34.

The square root of 469750021 is about 21673.7172861510. The cubic root of 469750021 is about 777.3601426116.

The spelling of 469750021 in words is "four hundred sixty-nine million, seven hundred fifty thousand, twenty-one".