2147685390 has 48 divisors (see below), whose sum is σ = 5662646496. Its totient is φ = 564648000.

The previous prime is 2147685383. The next prime is 2147685391. The reversal of 2147685390 is 935867412.

2147685390 is digitally balanced in base 10, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×2147685390² = 9225105068838904200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45).

2147685390 is strictly pandigital in base 10.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2147685391) 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, 161661 + ... + 174440.

It is an arithmetic number, because the mean of its divisors is an integer number (117971802).

It is a 1-persistent number, because it is pandigital, but 2⋅2147685390 = 4295370780 is not.

Almost surely, 2^2147685390 is an apocalyptic number.

2147685390 is an abundant number, since it is smaller than the sum of its proper divisors (3514961106).

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

2147685390 is a wasteful number, since it uses less digits than its factorization.

2147685390 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 336185 (or 336182 counting only the distinct ones).

The product of its (nonzero) digits is 362880, while the sum is 45.

The square root of 2147685390 is about 46343.1266748371. The cubic root of 2147685390 is about 1290.1995544901.

The spelling of 2147685390 in words is "two billion, one hundred forty-seven million, six hundred eighty-five thousand, three hundred ninety".