69464920 has 32 divisors (see below), whose sum is σ = 178624800. Its totient is φ = 23816448.

The previous prime is 69464917. The next prime is 69464921. The reversal of 69464920 is 2946496.

It is a super-2 number, since 2×69464920² = 9650750221212800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (40).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (69464921) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 123765 + ... + 124324.

It is an arithmetic number, because the mean of its divisors is an integer number (5582025).

Almost surely, 2^69464920 is an apocalyptic number.

It is an amenable number.

69464920 is an abundant number, since it is smaller than the sum of its proper divisors (109159880).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

69464920 is a wasteful number, since it uses less digits than its factorization.

69464920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 248107 (or 248103 counting only the distinct ones).

The product of its (nonzero) digits is 93312, while the sum is 40.

The square root of 69464920 is about 8334.5617761224. The cubic root of 69464920 is about 411.0757394019.

The spelling of 69464920 in words is "sixty-nine million, four hundred sixty-four thousand, nine hundred twenty".