1144666402 has 32 divisors (see below), whose sum is σ = 1909816704. Its totient is φ = 510182400.

The previous prime is 1144666399. The next prime is 1144666409. The reversal of 1144666402 is 2046664411.

It is a super-2 number, since 2×1144666402² = 2620522343735251208, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1144666409) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 299568 + ... + 303364.

It is an arithmetic number, because the mean of its divisors is an integer number (59681772).

Almost surely, 2^1144666402 is an apocalyptic number.

1144666402 is a deficient number, since it is larger than the sum of its proper divisors (765150302).

1144666402 is a wasteful number, since it uses less digits than its factorization.

1144666402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4074.

The product of its (nonzero) digits is 27648, while the sum is 34.

The square root of 1144666402 is about 33832.9189104340. The cubic root of 1144666402 is about 1046.0673456219.

The spelling of 1144666402 in words is "one billion, one hundred forty-four million, six hundred sixty-six thousand, four hundred two".