1531980466 has 16 divisors (see below), whose sum is σ = 2449267200. Its totient is φ = 716155200.

The previous prime is 1531980433. The next prime is 1531980473. The reversal of 1531980466 is 6640891351.

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, 144066 + ... + 154333.

It is an arithmetic number, because the mean of its divisors is an integer number (153079200).

Almost surely, 2^1531980466 is an apocalyptic number.

1531980466 is a deficient number, since it is larger than the sum of its proper divisors (917286734).

1531980466 is a wasteful number, since it uses less digits than its factorization.

1531980466 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 298569.

The product of its (nonzero) digits is 155520, while the sum is 43.

The square root of 1531980466 is about 39140.5220455732. The cubic root of 1531980466 is about 1152.7923237128.

The spelling of 1531980466 in words is "one billion, five hundred thirty-one million, nine hundred eighty thousand, four hundred sixty-six".