101428920 has 48 divisors (see below), whose sum is σ = 329645160. Its totient is φ = 27047616.

The previous prime is 101428883. The next prime is 101428927. The reversal of 101428920 is 29824101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (101428927) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 140514 + ... + 141233.

Almost surely, 2^101428920 is an apocalyptic number.

101428920 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

101428920 is an abundant number, since it is smaller than the sum of its proper divisors (228216240).

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

101428920 is a wasteful number, since it uses less digits than its factorization.

101428920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 281764 (or 281757 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 27.

The square root of 101428920 is about 10071.1925808218. The cubic root of 101428920 is about 466.3592555910.

The spelling of 101428920 in words is "one hundred one million, four hundred twenty-eight thousand, nine hundred twenty".