1402249665 has 8 divisors (see below), whose sum is σ = 2243599488. Its totient is φ = 747866480.

The previous prime is 1402249661. The next prime is 1402249679. The reversal of 1402249665 is 5669422041.

It is a happy number.

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

It is not a de Polignac number, because 1402249665 - 2² = 1402249661 is a prime.

It is a super-2 number, since 2×1402249665² = 3932608245985224450, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1402249661) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 46741641 + ... + 46741670.

It is an arithmetic number, because the mean of its divisors is an integer number (280449936).

Almost surely, 2^1402249665 is an apocalyptic number.

1402249665 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1402249665 is a deficient number, since it is larger than the sum of its proper divisors (841349823).

1402249665 is an equidigital number, since it uses as much as digits as its factorization.

1402249665 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 93483319.

The product of its (nonzero) digits is 103680, while the sum is 39.

The square root of 1402249665 is about 37446.6242136725. The cubic root of 1402249665 is about 1119.2878298297.

The spelling of 1402249665 in words is "one billion, four hundred two million, two hundred forty-nine thousand, six hundred sixty-five".