1069390740 has 72 divisors (see below), whose sum is σ = 3291271200. Its totient is φ = 259244480.

The previous prime is 1069390739. The next prime is 1069390781. The reversal of 1069390740 is 470939601.

It is a super-2 number, since 2×1069390740² = 2287193109595495200, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 66390 + ... + 80909.

It is an arithmetic number, because the mean of its divisors is an integer number (45712100).

Almost surely, 2^1069390740 is an apocalyptic number.

1069390740 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1069390740 is an abundant number, since it is smaller than the sum of its proper divisors (2221880460).

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

1069390740 is a wasteful number, since it uses less digits than its factorization.

1069390740 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 147333 (or 147320 counting only the distinct ones).

The product of its (nonzero) digits is 40824, while the sum is 39.

The square root of 1069390740 is about 32701.5403306939. The cubic root of 1069390740 is about 1022.6149551035.

The spelling of 1069390740 in words is "one billion, sixty-nine million, three hundred ninety thousand, seven hundred forty".