69412440 has 64 divisors (see below), whose sum is σ = 211196160. Its totient is φ = 18247040.

The previous prime is 69412439. The next prime is 69412451. The reversal of 69412440 is 4421496.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 69412398 and 69412407.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4447 + ... + 12593.

It is an arithmetic number, because the mean of its divisors is an integer number (3299940).

Almost surely, 2^69412440 is an apocalyptic number.

69412440 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 69412440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (105598080).

69412440 is an abundant number, since it is smaller than the sum of its proper divisors (141783720).

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

69412440 is a wasteful number, since it uses less digits than its factorization.

69412440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8232 (or 8228 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 30.

The square root of 69412440 is about 8331.4128453702. The cubic root of 69412440 is about 410.9721922212.

The spelling of 69412440 in words is "sixty-nine million, four hundred twelve thousand, four hundred forty".