65674480 has 40 divisors (see below), whose sum is σ = 153052704. Its totient is φ = 26208000.

The previous prime is 65674457. The next prime is 65674559. The reversal of 65674480 is 8447656.

It is a tau number, because it is divible by the number of its divisors (40).

It is a Harshad number since it is a multiple of its sum of digits (40).

It is a congruent number.

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, 49830 + ... + 51130.

Almost surely, 2^65674480 is an apocalyptic number.

It is an amenable number.

65674480 is an abundant number, since it is smaller than the sum of its proper divisors (87378224).

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

65674480 is a wasteful number, since it uses less digits than its factorization.

65674480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1945 (or 1939 counting only the distinct ones).

The product of its (nonzero) digits is 161280, while the sum is 40.

The square root of 65674480 is about 8103.9792694700. The cubic root of 65674480 is about 403.4585105776.

The spelling of 65674480 in words is "sixty-five million, six hundred seventy-four thousand, four hundred eighty".