1386973350 has 144 divisors (see below), whose sum is σ = 4293439488. Its totient is φ = 314435520.

The previous prime is 1386973333. The next prime is 1386973417. The reversal of 1386973350 is 533796831.

It is a super-2 number, since 2×1386973350² = 3847390147220445000, which contains 22 as substring.

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

It is a junction number, because it is equal to n+sod(n) for n = 1386973296 and 1386973305.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 398317 + ... + 401783.

It is an arithmetic number, because the mean of its divisors is an integer number (29815552).

Almost surely, 2^1386973350 is an apocalyptic number.

1386973350 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 1386973350, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2146719744).

1386973350 is an abundant number, since it is smaller than the sum of its proper divisors (2906466138).

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

1386973350 is a wasteful number, since it uses less digits than its factorization.

1386973350 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3619 (or 3611 counting only the distinct ones).

The product of its (nonzero) digits is 408240, while the sum is 45.

The square root of 1386973350 is about 37242.0911067034. The cubic root of 1386973350 is about 1115.2084175407.

The spelling of 1386973350 in words is "one billion, three hundred eighty-six million, nine hundred seventy-three thousand, three hundred fifty".