1402204420 has 12 divisors (see below), whose sum is σ = 2944629324. Its totient is φ = 560881760.

The previous prime is 1402204409. The next prime is 1402204423. The reversal of 1402204420 is 244022041.

It can be written as a sum of positive squares in 2 ways, for example, as 425266884 + 976937536 = 20622^2 + 31256^2 .

It is not an unprimeable number, because it can be changed into a prime (1402204423) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 35055091 + ... + 35055130.

It is an arithmetic number, because the mean of its divisors is an integer number (245385777).

Almost surely, 2^1402204420 is an apocalyptic number.

1402204420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1402204420 is an abundant number, since it is smaller than the sum of its proper divisors (1542424904).

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

1402204420 is a wasteful number, since it uses less digits than its factorization.

1402204420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70110230 (or 70110228 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 19.

The square root of 1402204420 is about 37446.0200822464. The cubic root of 1402204420 is about 1119.2757913832.

Adding to 1402204420 its reverse (244022041), we get a palindrome (1646226461).

The spelling of 1402204420 in words is "one billion, four hundred two million, two hundred four thousand, four hundred twenty".