142780880 has 40 divisors (see below), whose sum is σ = 362146464. Its totient is φ = 51920000.

The previous prime is 142780873. The next prime is 142780933. The reversal of 142780880 is 88087241.

It is a happy number.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 80246 + ... + 82005.

Almost surely, 2^142780880 is an apocalyptic number.

142780880 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

142780880 is an abundant number, since it is smaller than the sum of its proper divisors (219365584).

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

142780880 is a wasteful number, since it uses less digits than its factorization.

142780880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 162275 (or 162269 counting only the distinct ones).

The product of its (nonzero) digits is 28672, while the sum is 38.

The square root of 142780880 is about 11949.0953632482. The cubic root of 142780880 is about 522.6649189805.

The spelling of 142780880 in words is "one hundred forty-two million, seven hundred eighty thousand, eight hundred eighty".