240978077 has 8 divisors (see below), whose sum is σ = 262049976. Its totient is φ = 220672512.

The previous prime is 240978041. The next prime is 240978119. The reversal of 240978077 is 770879042.

240978077 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 79459396 + 161518681 = 8914^2 + 12709^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 240978077 - 2¹⁸ = 240715933 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (240978277) 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, 190928 + ... + 192185.

It is an arithmetic number, because the mean of its divisors is an integer number (32756247).

Almost surely, 2^240978077 is an apocalyptic number.

It is an amenable number.

240978077 is a deficient number, since it is larger than the sum of its proper divisors (21071899).

240978077 is a wasteful number, since it uses less digits than its factorization.

240978077 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 383167.

The product of its (nonzero) digits is 197568, while the sum is 44.

The square root of 240978077 is about 15523.4685879155. The cubic root of 240978077 is about 622.2895549453.

The spelling of 240978077 in words is "two hundred forty million, nine hundred seventy-eight thousand, seventy-seven".