1350640290 has 16 divisors (see below), whose sum is σ = 3241536768. Its totient is φ = 360170736.

The previous prime is 1350640253. The next prime is 1350640307. The reversal of 1350640290 is 920460531.

It is a Harshad number since it is a multiple of its sum of digits (30), and also a Moran number because the ratio is a prime number: 45021343 = 1350640290 / (1 + 3 + 5 + 0 + 6 + 4 + 0 + 2 + 9 + 0).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22510642 + ... + 22510701.

It is an arithmetic number, because the mean of its divisors is an integer number (202596048).

Almost surely, 2^1350640290 is an apocalyptic number.

1350640290 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1350640290 is an abundant number, since it is smaller than the sum of its proper divisors (1890896478).

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

1350640290 is a wasteful number, since it uses less digits than its factorization.

1350640290 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45021353.

The product of its (nonzero) digits is 6480, while the sum is 30.

The square root of 1350640290 is about 36751.0583521074. The cubic root of 1350640290 is about 1105.3841514959.

The spelling of 1350640290 in words is "one billion, three hundred fifty million, six hundred forty thousand, two hundred ninety".