69152940 has 216 divisors, whose sum is σ = 238073472. Its totient is φ = 16796160.

The previous prime is 69152939. The next prime is 69152947. The reversal of 69152940 is 4925196.

69152940 is a `hidden beast` number, since 6 + 91 + 529 + 40 = 666.

It is a super-2 number, since 2×69152940² = 9564258221287200, which contains 22 as substring.

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

It is a junction number, because it is equal to n+sod(n) for n = 69152895 and 69152904.

It is not an unprimeable number, because it can be changed into a prime (69152947) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 2230725 + ... + 2230755.

It is an arithmetic number, because the mean of its divisors is an integer number (1102192).

Almost surely, 2^69152940 is an apocalyptic number.

69152940 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 69152940, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (119036736).

69152940 is an abundant number, since it is smaller than the sum of its proper divisors (168920532).

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

69152940 is a wasteful number, since it uses less digits than its factorization.

69152940 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81 (or 58 counting only the distinct ones).

The product of its (nonzero) digits is 19440, while the sum is 36.

The square root of 69152940 is about 8315.8246734765. The cubic root of 69152940 is about 410.4594096820.

The spelling of 69152940 in words is "sixty-nine million, one hundred fifty-two thousand, nine hundred forty".