1402145944 has 8 divisors (see below), whose sum is σ = 2629023660. Its totient is φ = 701072968.

The previous prime is 1402145891. The next prime is 1402145951. The reversal of 1402145944 is 4495412041.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-2 number, since 2×1402145944² = 3932026496551302272, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 87634114 + ... + 87634129.

Almost surely, 2^1402145944 is an apocalyptic number.

It is an amenable number.

1402145944 is a deficient number, since it is larger than the sum of its proper divisors (1226877716).

1402145944 is a wasteful number, since it uses less digits than its factorization.

1402145944 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 175268249 (or 175268245 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 34.

The square root of 1402145944 is about 37445.2392701662. The cubic root of 1402145944 is about 1119.2602321490.

Adding to 1402145944 its reverse (4495412041), we get a palindrome (5897557985).

The spelling of 1402145944 in words is "one billion, four hundred two million, one hundred forty-five thousand, nine hundred forty-four".