101402880 has 72 divisors (see below), whose sum is σ = 323867712. Its totient is φ = 27039744.

The previous prime is 101402869. The next prime is 101402933. The reversal of 101402880 is 88204101.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a self number, because there is not a number n which added to its sum of digits gives 101402880.

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, 9364 + ... + 17043.

Almost surely, 2^101402880 is an apocalyptic number.

101402880 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

101402880 is an abundant number, since it is smaller than the sum of its proper divisors (222464832).

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

101402880 is an equidigital number, since it uses as much as digits as its factorization.

101402880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26431 (or 26417 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 24.

The square root of 101402880 is about 10069.8997015859. The cubic root of 101402880 is about 466.3193424695.

Adding to 101402880 its reverse (88204101), we get a palindrome (189606981).

The spelling of 101402880 in words is "one hundred one million, four hundred two thousand, eight hundred eighty".