69142680 has 128 divisors (see below), whose sum is σ = 233899200. Its totient is φ = 18164736.

The previous prime is 69142673. The next prime is 69142693. The reversal of 69142680 is 8624196.

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 31 ways as a sum of consecutive naturals, for example, 78402 + ... + 79278.

Almost surely, 2^69142680 is an apocalyptic number.

69142680 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 69142680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (116949600).

69142680 is an abundant number, since it is smaller than the sum of its proper divisors (164756520).

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

69142680 is a wasteful number, since it uses less digits than its factorization.

69142680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 970 (or 960 counting only the distinct ones).

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

The square root of 69142680 is about 8315.2077544701. The cubic root of 69142680 is about 410.4391091624.

The spelling of 69142680 in words is "sixty-nine million, one hundred forty-two thousand, six hundred eighty".