240429978 has 16 divisors (see below), whose sum is σ = 534288960. Its totient is φ = 80143308.

The previous prime is 240429977. The next prime is 240429979. The reversal of 240429978 is 879924042.

It is an interprime number because it is at equal distance from previous prime (240429977) and next prime (240429979).

It is not an unprimeable number, because it can be changed into a prime (240429977) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2226150 + ... + 2226257.

It is an arithmetic number, because the mean of its divisors is an integer number (33393060).

Almost surely, 2^240429978 is an apocalyptic number.

240429978 is an abundant number, since it is smaller than the sum of its proper divisors (293858982).

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

240429978 is a wasteful number, since it uses less digits than its factorization.

240429978 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4452418 (or 4452412 counting only the distinct ones).

The product of its (nonzero) digits is 290304, while the sum is 45.

The square root of 240429978 is about 15505.8046550316. The cubic root of 240429978 is about 621.8174024515.

The spelling of 240429978 in words is "two hundred forty million, four hundred twenty-nine thousand, nine hundred seventy-eight".