1202402400 has 72 divisors (see below), whose sum is σ = 3913827624. Its totient is φ = 320640000.

The previous prime is 1202402393. The next prime is 1202402413. The reversal of 1202402400 is 42042021.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 1202402400.

It is a congruent number.

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, 248101 + ... + 252900.

It is an arithmetic number, because the mean of its divisors is an integer number (54358717).

Almost surely, 2^1202402400 is an apocalyptic number.

1202402400 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1202402400 is an abundant number, since it is smaller than the sum of its proper divisors (2711425224).

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

1202402400 is a wasteful number, since it uses less digits than its factorization.

1202402400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 501024 (or 501011 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 15.

The square root of 1202402400 is about 34675.6744707295. The cubic root of 1202402400 is about 1063.3672439557.

Adding to 1202402400 its reverse (42042021), we get a palindrome (1244444421).

The spelling of 1202402400 in words is "one billion, two hundred two million, four hundred two thousand, four hundred".