469921749 has 16 divisors (see below), whose sum is σ = 686076480. Its totient is φ = 283736960.

The previous prime is 469921729. The next prime is 469921757. The reversal of 469921749 is 947129964.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 469921749 - 2⁹ = 469921237 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (469921709) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17592 + ... + 35345.

It is an arithmetic number, because the mean of its divisors is an integer number (42879780).

Almost surely, 2^469921749 is an apocalyptic number.

It is an amenable number.

469921749 is a deficient number, since it is larger than the sum of its proper divisors (216154731).

469921749 is a wasteful number, since it uses less digits than its factorization.

469921749 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53220.

The product of its digits is 979776, while the sum is 51.

The square root of 469921749 is about 21677.6785888157. The cubic root of 469921749 is about 777.4548584055.

The spelling of 469921749 in words is "four hundred sixty-nine million, nine hundred twenty-one thousand, seven hundred forty-nine".