69807420 has 120 divisors (see below), whose sum is σ = 224543088. Its totient is φ = 18144000.

The previous prime is 69807401. The next prime is 69807421. The reversal of 69807420 is 2470896.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (69807421) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 65895 + ... + 66945.

Almost surely, 2^69807420 is an apocalyptic number.

69807420 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 69807420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (112271544).

69807420 is an abundant number, since it is smaller than the sum of its proper divisors (154735668).

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

69807420 is a wasteful number, since it uses less digits than its factorization.

69807420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1113 (or 1102 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 36.

The square root of 69807420 is about 8355.0834825273. The cubic root of 69807420 is about 411.7502413726.

It can be divided in two parts, 6980 and 7420, that added together give a square (14400 = 120²).

The spelling of 69807420 in words is "sixty-nine million, eight hundred seven thousand, four hundred twenty".