1087739730 has 288 divisors, whose sum is σ = 3802930560. Its totient is φ = 212567040.

The previous prime is 1087739729. The next prime is 1087739761. The reversal of 1087739730 is 379377801.

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

It is an unprimeable number.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 824011 + ... + 825329.

It is an arithmetic number, because the mean of its divisors is an integer number (13204620).

Almost surely, 2^1087739730 is an apocalyptic number.

1087739730 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 1087739730, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1901465280).

1087739730 is an abundant number, since it is smaller than the sum of its proper divisors (2715190830).

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

1087739730 is a wasteful number, since it uses less digits than its factorization.

1087739730 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1374 (or 1364 counting only the distinct ones).

The product of its (nonzero) digits is 222264, while the sum is 45.

The square root of 1087739730 is about 32980.8994722703. The cubic root of 1087739730 is about 1028.4306165537.

The spelling of 1087739730 in words is "one billion, eighty-seven million, seven hundred thirty-nine thousand, seven hundred thirty".