102274040 has 128 divisors (see below), whose sum is σ = 270371520. Its totient is φ = 34693120.

The previous prime is 102274033. The next prime is 102274043. The reversal of 102274040 is 40472201.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102274043) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 905024 + ... + 905136.

Almost surely, 2^102274040 is an apocalyptic number.

102274040 is a gapful number since it is divisible by the number (10) 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 102274040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (135185760).

102274040 is an abundant number, since it is smaller than the sum of its proper divisors (168097480).

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

102274040 is a wasteful number, since it uses less digits than its factorization.

102274040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 174 (or 148 counting only the distinct ones).

The product of its (nonzero) digits is 448, while the sum is 20.

The square root of 102274040 is about 10113.0628397138. The cubic root of 102274040 is about 467.6509316589.

The spelling of 102274040 in words is "one hundred two million, two hundred seventy-four thousand, forty".