403440234442 has 16 divisors (see below), whose sum is σ = 701085966912. Its totient is φ = 170534423520.

The previous prime is 403440234401. The next prime is 403440234451. The reversal of 403440234442 is 244432044304.

It is a junction number, because it is equal to n+sod(n) for n = 403440234398 and 403440234407.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 197376784 + ... + 197378827.

It is an arithmetic number, because the mean of its divisors is an integer number (43817872932).

Almost surely, 2^403440234442 is an apocalyptic number.

403440234442 is a deficient number, since it is larger than the sum of its proper divisors (297645732470).

403440234442 is a wasteful number, since it uses less digits than its factorization.

403440234442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 394755693.

The product of its (nonzero) digits is 147456, while the sum is 34.

Adding to 403440234442 its reverse (244432044304), we get a palindrome (647872278746).

The spelling of 403440234442 in words is "four hundred three billion, four hundred forty million, two hundred thirty-four thousand, four hundred forty-two".