1402520434 has 24 divisors (see below), whose sum is σ = 2591214300. Its totient is φ = 565721856.

The previous prime is 1402520429. The next prime is 1402520443. The reversal of 1402520434 is 4340252041.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 1119103209 + 283417225 = 33453^2 + 16835^2 .

It is a junction number, because it is equal to n+sod(n) for n = 1402520399 and 1402520408.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 419259 + ... + 422590.

Almost surely, 2^1402520434 is an apocalyptic number.

1402520434 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

1402520434 is a deficient number, since it is larger than the sum of its proper divisors (1188693866).

1402520434 is a wasteful number, since it uses less digits than its factorization.

1402520434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 841882 (or 841875 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 25.

The square root of 1402520434 is about 37450.2394384869. The cubic root of 1402520434 is about 1119.3598685802.

Adding to 1402520434 its reverse (4340252041), we get a palindrome (5742772475).

The spelling of 1402520434 in words is "one billion, four hundred two million, five hundred twenty thousand, four hundred thirty-four".