1453020402 has 64 divisors (see below), whose sum is σ = 3147258240. Its totient is φ = 445708800.

The previous prime is 1453020389. The next prime is 1453020409. The reversal of 1453020402 is 2040203541.

It is a super-2 number, since 2×1453020402² = 4222536577256483208, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1453020409) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 1368952 + ... + 1370012.

It is an arithmetic number, because the mean of its divisors is an integer number (49175910).

Almost surely, 2^1453020402 is an apocalyptic number.

1453020402 is an abundant number, since it is smaller than the sum of its proper divisors (1694237838).

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

1453020402 is a wasteful number, since it uses less digits than its factorization.

1453020402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1419.

The product of its (nonzero) digits is 960, while the sum is 21.

The square root of 1453020402 is about 38118.5047188370. The cubic root of 1453020402 is about 1132.6365464546.

Adding to 1453020402 its reverse (2040203541), we get a palindrome (3493223943).

The spelling of 1453020402 in words is "one billion, four hundred fifty-three million, twenty thousand, four hundred two".