1207942290 has 96 divisors (see below), whose sum is σ = 3449796480. Its totient is φ = 291886848.

The previous prime is 1207942273. The next prime is 1207942291. The reversal of 1207942290 is 922497021.

It is not an unprimeable number, because it can be changed into a prime (1207942291) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 23974 + ... + 54686.

It is an arithmetic number, because the mean of its divisors is an integer number (35935380).

Almost surely, 2^1207942290 is an apocalyptic number.

1207942290 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 1207942290, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1724898240).

1207942290 is an abundant number, since it is smaller than the sum of its proper divisors (2241854190).

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

1207942290 is a wasteful number, since it uses less digits than its factorization.

1207942290 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30768 (or 30765 counting only the distinct ones).

The product of its (nonzero) digits is 18144, while the sum is 36.

The square root of 1207942290 is about 34755.4641747165. The cubic root of 1207942290 is about 1064.9978443387.

The spelling of 1207942290 in words is "one billion, two hundred seven million, nine hundred forty-two thousand, two hundred ninety".