1481531340 has 24 divisors (see below), whose sum is σ = 4148287920. Its totient is φ = 395075008.

The previous prime is 1481531329. The next prime is 1481531347. The reversal of 1481531340 is 431351841.

It is a super-2 number, since 2×1481531340² = 4389870222804391200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 1481531298 and 1481531307.

It is not an unprimeable number, because it can be changed into a prime (1481531347) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12346035 + ... + 12346154.

It is an arithmetic number, because the mean of its divisors is an integer number (172845330).

Almost surely, 2^1481531340 is an apocalyptic number.

1481531340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1481531340 is an abundant number, since it is smaller than the sum of its proper divisors (2666756580).

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

1481531340 is a wasteful number, since it uses less digits than its factorization.

1481531340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24692201 (or 24692199 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 30.

The square root of 1481531340 is about 38490.6656216803. The cubic root of 1481531340 is about 1139.9967528378.

The spelling of 1481531340 in words is "one billion, four hundred eighty-one million, five hundred thirty-one thousand, three hundred forty".