65574740 has 144 divisors (see below), whose sum is σ = 178752000. Its totient is φ = 20180160.

The previous prime is 65574697. The next prime is 65574749. The reversal of 65574740 is 4747556.

It is a junction number, because it is equal to n+sod(n) for n = 65574694 and 65574703.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65574749) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 830021 + ... + 830099.

Almost surely, 2^65574740 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 65574740, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (89376000).

65574740 is an abundant number, since it is smaller than the sum of its proper divisors (113177260).

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

65574740 is a wasteful number, since it uses less digits than its factorization.

65574740 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 131 (or 104 counting only the distinct ones).

The product of its (nonzero) digits is 117600, while the sum is 38.

The square root of 65574740 is about 8097.8231642831. The cubic root of 65574740 is about 403.2541626056.

The spelling of 65574740 in words is "sixty-five million, five hundred seventy-four thousand, seven hundred forty".