1907734140 has 192 divisors, whose sum is σ = 6728601600. Its totient is φ = 444849408.

The previous prime is 1907734133. The next prime is 1907734181. The reversal of 1907734140 is 414377091.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 1907734095 and 1907734104.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 126229 + ... + 140531.

It is an arithmetic number, because the mean of its divisors is an integer number (35044800).

Almost surely, 2^1907734140 is an apocalyptic number.

1907734140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1907734140, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3364300800).

1907734140 is an abundant number, since it is smaller than the sum of its proper divisors (4820867460).

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

1907734140 is a wasteful number, since it uses less digits than its factorization.

1907734140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14353 (or 14345 counting only the distinct ones).

The product of its (nonzero) digits is 21168, while the sum is 36.

The square root of 1907734140 is about 43677.6160063710. The cubic root of 1907734140 is about 1240.2406184115.

The spelling of 1907734140 in words is "one billion, nine hundred seven million, seven hundred thirty-four thousand, one hundred forty".