77469040 has 120 divisors (see below), whose sum is σ = 203049504. Its totient is φ = 27456000.

The previous prime is 77469011. The next prime is 77469079. The reversal of 77469040 is 4096477.

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, 512965 + ... + 513115.

Almost surely, 2^77469040 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 77469040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (101524752).

77469040 is an abundant number, since it is smaller than the sum of its proper divisors (125580464).

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

77469040 is a wasteful number, since it uses less digits than its factorization.

77469040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 239 (or 222 counting only the distinct ones).

The product of its (nonzero) digits is 42336, while the sum is 37.

The square root of 77469040 is about 8801.6498453415. The cubic root of 77469040 is about 426.2941681599.

The spelling of 77469040 in words is "seventy-seven million, four hundred sixty-nine thousand, forty".