1390476330 has 24 divisors (see below), whose sum is σ = 3615238692. Its totient is φ = 370793664.

The previous prime is 1390476323. The next prime is 1390476331. The reversal of 1390476330 is 336740931.

1390476330 is a `hidden beast` number, since 13 + 9 + 0 + 4 + 7 + 633 + 0 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 1385849529 + 4626801 = 37227^2 + 2151^2 .

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1390476331) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 7724779 + ... + 7724958.

Almost surely, 2^1390476330 is an apocalyptic number.

1390476330 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1390476330 is an abundant number, since it is smaller than the sum of its proper divisors (2224762362).

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

1390476330 is a wasteful number, since it uses less digits than its factorization.

1390476330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15449750 (or 15449747 counting only the distinct ones).

The product of its (nonzero) digits is 40824, while the sum is 36.

The square root of 1390476330 is about 37289.0913002717. The cubic root of 1390476330 is about 1116.1464957802.

The spelling of 1390476330 in words is "one billion, three hundred ninety million, four hundred seventy-six thousand, three hundred thirty".