1481629640 has 32 divisors (see below), whose sum is σ = 3478610880. Its totient is φ = 566884032.

The previous prime is 1481629621. The next prime is 1481629651. The reversal of 1481629640 is 469261841.

It is a Smith number, since the sum of its digits (41) coincides with the sum of the digits of its prime factors.

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, 804314 + ... + 806153.

It is an arithmetic number, because the mean of its divisors is an integer number (108706590).

Almost surely, 2^1481629640 is an apocalyptic number.

1481629640 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1481629640 is an abundant number, since it is smaller than the sum of its proper divisors (1996981240).

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

1481629640 is a wasteful number, since it uses less digits than its factorization.

1481629640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1610501 (or 1610497 counting only the distinct ones).

The product of its (nonzero) digits is 82944, while the sum is 41.

The square root of 1481629640 is about 38491.9425334706. The cubic root of 1481629640 is about 1140.0219653098.

The spelling of 1481629640 in words is "one billion, four hundred eighty-one million, six hundred twenty-nine thousand, six hundred forty".