1375685240 has 32 divisors (see below), whose sum is σ = 3167279280. Its totient is φ = 537476352.

The previous prime is 1375685221. The next prime is 1375685287. The reversal of 1375685240 is 425865731.

It is a congruent number.

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, 398189 + ... + 401628.

Almost surely, 2^1375685240 is an apocalyptic number.

1375685240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1375685240 is an abundant number, since it is smaller than the sum of its proper divisors (1791594040).

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

1375685240 is a wasteful number, since it uses less digits than its factorization.

1375685240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 799871 (or 799867 counting only the distinct ones).

The product of its (nonzero) digits is 201600, while the sum is 41.

The square root of 1375685240 is about 37090.2310588651. The cubic root of 1375685240 is about 1112.1747370457.

The spelling of 1375685240 in words is "one billion, three hundred seventy-five million, six hundred eighty-five thousand, two hundred forty".