65294040 has 64 divisors (see below), whose sum is σ = 223868160. Its totient is φ = 14924160.

The previous prime is 65293997. The next prime is 65294041. The reversal of 65294040 is 4049256.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 65293989 and 65294007.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65294041) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 38026 + ... + 39705.

It is an arithmetic number, because the mean of its divisors is an integer number (3497940).

Almost surely, 2^65294040 is an apocalyptic number.

65294040 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

65294040 is an abundant number, since it is smaller than the sum of its proper divisors (158574120).

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

65294040 is a wasteful number, since it uses less digits than its factorization.

65294040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77752 (or 77748 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 30.

The square root of 65294040 is about 8080.4727584467. The cubic root of 65294040 is about 402.6779481414.

The spelling of 65294040 in words is "sixty-five million, two hundred ninety-four thousand, forty".