1072308390 has 16 divisors (see below), whose sum is σ = 2573540208. Its totient is φ = 285948896.

The previous prime is 1072308373. The next prime is 1072308397. The reversal of 1072308390 is 938032701.

It is a super-3 number, since 3×1072308390³ (a number of 28 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1072308397) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17871777 + ... + 17871836.

It is an arithmetic number, because the mean of its divisors is an integer number (160846263).

Almost surely, 2^1072308390 is an apocalyptic number.

1072308390 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1072308390 is an abundant number, since it is smaller than the sum of its proper divisors (1501231818).

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

1072308390 is a wasteful number, since it uses less digits than its factorization.

1072308390 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35743623.

The product of its (nonzero) digits is 9072, while the sum is 33.

The square root of 1072308390 is about 32746.1202282041. The cubic root of 1072308390 is about 1023.5441206784.

The spelling of 1072308390 in words is "one billion, seventy-two million, three hundred eight thousand, three hundred ninety".