1402991630 has 8 divisors (see below), whose sum is σ = 2525384952. Its totient is φ = 561196648.

The previous prime is 1402991617. The next prime is 1402991633. The reversal of 1402991630 is 361992041.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1402991633) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 70149572 + ... + 70149591.

It is an arithmetic number, because the mean of its divisors is an integer number (315673119).

Almost surely, 2^1402991630 is an apocalyptic number.

1402991630 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1402991630 is a deficient number, since it is larger than the sum of its proper divisors (1122393322).

1402991630 is a wasteful number, since it uses less digits than its factorization.

1402991630 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 140299170.

The product of its (nonzero) digits is 11664, while the sum is 35.

The square root of 1402991630 is about 37456.5298713055. The cubic root of 1402991630 is about 1119.4852093178.

The spelling of 1402991630 in words is "one billion, four hundred two million, nine hundred ninety-one thousand, six hundred thirty".