134574840 has 96 divisors (see below), whose sum is σ = 456412320. Its totient is φ = 34324224.

The previous prime is 134574763. The next prime is 134574871. The reversal of 134574840 is 48475431.

134574840 is a `hidden beast` number, since 1 + 3 + 4 + 574 + 84 + 0 = 666.

It is a super-2 number, since 2×134574840² = 36220775122051200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 134574795 and 134574804.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 154 + ... + 16406.

It is an arithmetic number, because the mean of its divisors is an integer number (4754295).

Almost surely, 2^134574840 is an apocalyptic number.

134574840 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 134574840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (228206160).

134574840 is an abundant number, since it is smaller than the sum of its proper divisors (321837480).

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

134574840 is a wasteful number, since it uses less digits than its factorization.

134574840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16293 (or 16286 counting only the distinct ones).

The product of its (nonzero) digits is 53760, while the sum is 36.

The square root of 134574840 is about 11600.6396375372. The cubic root of 134574840 is about 512.4536892518.

The spelling of 134574840 in words is "one hundred thirty-four million, five hundred seventy-four thousand, eight hundred forty".