1402542420 has 48 divisors (see below), whose sum is σ = 3934744128. Its totient is φ = 373285120.

The previous prime is 1402542413. The next prime is 1402542431. The reversal of 1402542420 is 242452041.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8827 + ... + 53693.

It is an arithmetic number, because the mean of its divisors is an integer number (81973836).

Almost surely, 2^1402542420 is an apocalyptic number.

1402542420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1402542420 is an abundant number, since it is smaller than the sum of its proper divisors (2532201708).

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

1402542420 is a wasteful number, since it uses less digits than its factorization.

1402542420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45400 (or 45398 counting only the distinct ones).

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

The square root of 1402542420 is about 37450.5329735105. The cubic root of 1402542420 is about 1119.3657176019.

Adding to 1402542420 its reverse (242452041), we get a palindrome (1644994461).

The spelling of 1402542420 in words is "one billion, four hundred two million, five hundred forty-two thousand, four hundred twenty".