77402050 has 24 divisors (see below), whose sum is σ = 157056912. Its totient is φ = 28146000.

The previous prime is 77402047. The next prime is 77402051. The reversal of 77402050 is 5020477.

It is a hoax number, since the sum of its digits (25) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is not an unprimeable number, because it can be changed into a prime (77402051) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 69816 + ... + 70915.

It is an arithmetic number, because the mean of its divisors is an integer number (6544038).

Almost surely, 2^77402050 is an apocalyptic number.

77402050 is an abundant number, since it is smaller than the sum of its proper divisors (79654862).

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

77402050 is a wasteful number, since it uses less digits than its factorization.

77402050 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 140754 (or 140749 counting only the distinct ones).

The product of its (nonzero) digits is 1960, while the sum is 25.

The square root of 77402050 is about 8797.8434857640. The cubic root of 77402050 is about 426.1712559109.

The spelling of 77402050 in words is "seventy-seven million, four hundred two thousand, fifty".