69138480 has 40 divisors (see below), whose sum is σ = 214330032. Its totient is φ = 18436864.

The previous prime is 69138479. The next prime is 69138481. The reversal of 69138480 is 8483196.

It is an interprime number because it is at equal distance from previous prime (69138479) and next prime (69138481).

It is a tau number, because it is divible by the number of its divisors (40).

It is not an unprimeable number, because it can be changed into a prime (69138481) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 143799 + ... + 144278.

Almost surely, 2^69138480 is an apocalyptic number.

69138480 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

69138480 is an abundant number, since it is smaller than the sum of its proper divisors (145191552).

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

69138480 is a wasteful number, since it uses less digits than its factorization.

69138480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 288093 (or 288087 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 39.

The square root of 69138480 is about 8314.9552013225. The cubic root of 69138480 is about 410.4307984289.

The spelling of 69138480 in words is "sixty-nine million, one hundred thirty-eight thousand, four hundred eighty".