1290407630 has 16 divisors (see below), whose sum is σ = 2341025280. Its totient is φ = 512098272.

The previous prime is 1290407623. The next prime is 1290407633. The reversal of 1290407630 is 367040921.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1290407633) 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, 506765 + ... + 509304.

It is an arithmetic number, because the mean of its divisors is an integer number (146314080).

Almost surely, 2^1290407630 is an apocalyptic number.

1290407630 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1290407630 is a deficient number, since it is larger than the sum of its proper divisors (1050617650).

1290407630 is a wasteful number, since it uses less digits than its factorization.

1290407630 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1016203.

The product of its (nonzero) digits is 9072, while the sum is 32.

The square root of 1290407630 is about 35922.2442227654. The cubic root of 1290407630 is about 1088.7018830867.

The spelling of 1290407630 in words is "one billion, two hundred ninety million, four hundred seven thousand, six hundred thirty".