1402420524 has 12 divisors (see below), whose sum is σ = 3272314584. Its totient is φ = 467473504.

The previous prime is 1402420517. The next prime is 1402420549. The reversal of 1402420524 is 4250242041.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-2 number, since 2×1402420524² = 3933566652272869152, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1402420494 and 1402420503.

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 3 ways as a sum of consecutive naturals, for example, 58434177 + ... + 58434200.

It is an arithmetic number, because the mean of its divisors is an integer number (272692882).

Almost surely, 2^1402420524 is an apocalyptic number.

It is an amenable number.

1402420524 is an abundant number, since it is smaller than the sum of its proper divisors (1869894060).

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

1402420524 is a wasteful number, since it uses less digits than its factorization.

1402420524 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 116868384 (or 116868382 counting only the distinct ones).

The product of its (nonzero) digits is 2560, while the sum is 24.

The square root of 1402420524 is about 37448.9055113764. The cubic root of 1402420524 is about 1119.3332883614. Note that the first 3 decimals are identical.

Adding to 1402420524 its reverse (4250242041), we get a palindrome (5652662565).

The spelling of 1402420524 in words is "one billion, four hundred two million, four hundred twenty thousand, five hundred twenty-four".