77469450 has 48 divisors (see below), whose sum is σ = 193011456. Its totient is φ = 20563200.

The previous prime is 77469439. The next prime is 77469467. The reversal of 77469450 is 5496477.

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, 35079 + ... + 37221.

It is an arithmetic number, because the mean of its divisors is an integer number (4021072).

Almost surely, 2^77469450 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 77469450, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (96505728).

77469450 is an abundant number, since it is smaller than the sum of its proper divisors (115542006).

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

77469450 is a wasteful number, since it uses less digits than its factorization.

77469450 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2399 (or 2394 counting only the distinct ones).

The product of its (nonzero) digits is 211680, while the sum is 42.

The square root of 77469450 is about 8801.6731363986. The cubic root of 77469450 is about 426.2949202035.

The spelling of 77469450 in words is "seventy-seven million, four hundred sixty-nine thousand, four hundred fifty".