1402825140 has 36 divisors (see below), whose sum is σ = 4255236804. Its totient is φ = 374086656.

The previous prime is 1402825111. The next prime is 1402825153. The reversal of 1402825140 is 415282041.

1402825140 is a `hidden beast` number, since 1 + 402 + 8 + 251 + 4 + 0 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 653927184 + 748897956 = 25572^2 + 27366^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3896557 + ... + 3896916.

Almost surely, 2^1402825140 is an apocalyptic number.

1402825140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1402825140 is an abundant number, since it is smaller than the sum of its proper divisors (2852411664).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1402825140 is a wasteful number, since it uses less digits than its factorization.

1402825140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7793488 (or 7793483 counting only the distinct ones).

The product of its (nonzero) digits is 2560, while the sum is 27.

The square root of 1402825140 is about 37454.3073624383. The cubic root of 1402825140 is about 1119.4409252652.

The spelling of 1402825140 in words is "one billion, four hundred two million, eight hundred twenty-five thousand, one hundred forty".