440663540 has 48 divisors (see below), whose sum is σ = 947890944. Its totient is φ = 172003200.

The previous prime is 440663539. The next prime is 440663567. The reversal of 440663540 is 45366044.

It is a junction number, because it is equal to n+sod(n) for n = 440663497 and 440663506.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 536330 + ... + 537150.

It is an arithmetic number, because the mean of its divisors is an integer number (19747728).

Almost surely, 2^440663540 is an apocalyptic number.

It is an amenable number.

440663540 is an abundant number, since it is smaller than the sum of its proper divisors (507227404).

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

440663540 is a wasteful number, since it uses less digits than its factorization.

440663540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1448 (or 1446 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 32.

The square root of 440663540 is about 20991.9875190512. The cubic root of 440663540 is about 760.9726351318.

It can be divided in two parts, 440663 and 540, that multiplied together give a triangular number (237958020 = T₂₁₈₁₅).

The spelling of 440663540 in words is "four hundred forty million, six hundred sixty-three thousand, five hundred forty".