246400057 has 8 divisors (see below), whose sum is σ = 267946056. Its totient is φ = 225637632.

The previous prime is 246400043. The next prime is 246400067. The reversal of 246400057 is 750004642.

It can be written as a sum of positive squares in 4 ways, for example, as 87160896 + 159239161 = 9336^2 + 12619^2 .

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-246400057 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 246399998 and 246400034.

It is not an unprimeable number, because it can be changed into a prime (246400027) 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, 195238 + ... + 196495.

It is an arithmetic number, because the mean of its divisors is an integer number (33493257).

Almost surely, 2^246400057 is an apocalyptic number.

It is an amenable number.

246400057 is a deficient number, since it is larger than the sum of its proper divisors (21545999).

246400057 is a wasteful number, since it uses less digits than its factorization.

246400057 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 391787.

The product of its (nonzero) digits is 6720, while the sum is 28.

The square root of 246400057 is about 15697.1353118969. The cubic root of 246400057 is about 626.9221312385.

Adding to 246400057 its reverse (750004642), we get a palindrome (996404699).

The spelling of 246400057 in words is "two hundred forty-six million, four hundred thousand, fifty-seven".