1375486240 has 48 divisors (see below), whose sum is σ = 3361652280. Its totient is φ = 531220480.

The previous prime is 1375486237. The next prime is 1375486243. The reversal of 1375486240 is 426845731.

It is an interprime number because it is at equal distance from previous prime (1375486237) and next prime (1375486243).

It can be written as a sum of positive squares in 4 ways, for example, as 676624144 + 698862096 = 26012^2 + 26436^2 .

It is a Harshad number since it is a multiple of its sum of digits (40).

It is a junction number, because it is equal to n+sod(n) for n = 1375486193 and 1375486202.

It is not an unprimeable number, because it can be changed into a prime (1375486243) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 143581 + ... + 152860.

Almost surely, 2^1375486240 is an apocalyptic number.

1375486240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1375486240 is an abundant number, since it is smaller than the sum of its proper divisors (1986166040).

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

1375486240 is a wasteful number, since it uses less digits than its factorization.

1375486240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 296485 (or 296477 counting only the distinct ones).

The product of its (nonzero) digits is 161280, while the sum is 40.

The square root of 1375486240 is about 37087.5483147646. The cubic root of 1375486240 is about 1112.1211071797.

The spelling of 1375486240 in words is "one billion, three hundred seventy-five million, four hundred eighty-six thousand, two hundred forty".