1340634630 has 16 divisors (see below), whose sum is σ = 3217523184. Its totient is φ = 357502560.

The previous prime is 1340634619. The next prime is 1340634643. The reversal of 1340634630 is 364360431.

1340634630 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×1340634630² = 3594602422310473800, which contains 22 as substring.

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: 44687821 = 1340634630 / (1 + 3 + 4 + 0 + 6 + 3 + 4 + 6 + 3 + 0).

It is a congruent number.

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, 22343881 + ... + 22343940.

It is an arithmetic number, because the mean of its divisors is an integer number (201095199).

Almost surely, 2^1340634630 is an apocalyptic number.

1340634630 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1340634630 is an abundant number, since it is smaller than the sum of its proper divisors (1876888554).

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

1340634630 is a wasteful number, since it uses less digits than its factorization.

1340634630 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44687831.

The product of its (nonzero) digits is 15552, while the sum is 30.

The square root of 1340634630 is about 36614.6777945676. The cubic root of 1340634630 is about 1102.6477894856.

The spelling of 1340634630 in words is "one billion, three hundred forty million, six hundred thirty-four thousand, six hundred thirty".