1350861390 has 48 divisors (see below), whose sum is σ = 3525966288. Its totient is φ = 358821888.

The previous prime is 1350861371. The next prime is 1350861397. The reversal of 1350861390 is 931680531.

It is a happy number.

1350861390 is a `hidden beast` number, since 1 + 3 + 508 + 61 + 3 + 90 = 666.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1350861397) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 6072 + ... + 52331.

It is an arithmetic number, because the mean of its divisors is an integer number (73457631).

Almost surely, 2^1350861390 is an apocalyptic number.

1350861390 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1350861390 is an abundant number, since it is smaller than the sum of its proper divisors (2175104898).

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

1350861390 is a wasteful number, since it uses less digits than its factorization.

1350861390 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58673 (or 58670 counting only the distinct ones).

The product of its (nonzero) digits is 19440, while the sum is 36.

The square root of 1350861390 is about 36754.0663056484. The cubic root of 1350861390 is about 1105.4444653838. Note that the first 4 decimals are identical.

The spelling of 1350861390 in words is "one billion, three hundred fifty million, eight hundred sixty-one thousand, three hundred ninety".