2429780136 has 64 divisors (see below), whose sum is σ = 6946193280. Its totient is φ = 693826560.

The previous prime is 2429780083. The next prime is 2429780137. The reversal of 2429780136 is 6310879242.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is not an unprimeable number, because it can be changed into a prime (2429780137) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 420660 + ... + 426396.

It is an arithmetic number, because the mean of its divisors is an integer number (108534270).

Almost surely, 2^2429780136 is an apocalyptic number.

It is an amenable number.

2429780136 is an abundant number, since it is smaller than the sum of its proper divisors (4516413144).

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

2429780136 is a wasteful number, since it uses less digits than its factorization.

2429780136 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8274 (or 8270 counting only the distinct ones).

The product of its (nonzero) digits is 145152, while the sum is 42.

The square root of 2429780136 is about 49292.8000421968. The cubic root of 2429780136 is about 1344.3808754367.

The spelling of 2429780136 in words is "two billion, four hundred twenty-nine million, seven hundred eighty thousand, one hundred thirty-six".