65315404 has 48 divisors (see below), whose sum is σ = 143490816. Its totient is φ = 25272000.

The previous prime is 65315353. The next prime is 65315413. The reversal of 65315404 is 40451356.

It is a super-2 number, since 2×65315404² = 8532203999366432, which contains 22 as substring.

It is a Smith number, since the sum of its digits (28) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 49554 + ... + 50854.

It is an arithmetic number, because the mean of its divisors is an integer number (2989392).

Almost surely, 2^65315404 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 65315404, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (71745408).

65315404 is an abundant number, since it is smaller than the sum of its proper divisors (78175412).

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

65315404 is a wasteful number, since it uses less digits than its factorization.

65315404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1486 (or 1484 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 28.

The square root of 65315404 is about 8081.7946026857. The cubic root of 65315404 is about 402.7218616623.

It can be divided in two parts, 6531 and 5404, that added together give a triangular number (11935 = T₁₅₄).

The spelling of 65315404 in words is "sixty-five million, three hundred fifteen thousand, four hundred four".