69820416 has 84 divisors (see below), whose sum is σ = 201904092. Its totient is φ = 23248896.

The previous prime is 69820403. The next prime is 69820441. The reversal of 69820416 is 61402896.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 73255 + ... + 74201.

Almost surely, 2^69820416 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 69820416, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (100952046).

69820416 is an abundant number, since it is smaller than the sum of its proper divisors (132083676).

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

69820416 is an equidigital number, since it uses as much as digits as its factorization.

69820416 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 979 (or 952 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 36.

The square root of 69820416 is about 8355.8611764438. The cubic root of 69820416 is about 411.7757915415.

The spelling of 69820416 in words is "sixty-nine million, eight hundred twenty thousand, four hundred sixteen".