1453442402 has 4 divisors (see below), whose sum is σ = 2180163606. Its totient is φ = 726721200.

The previous prime is 1453442383. The next prime is 1453442413. The reversal of 1453442402 is 2042443541.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 1327800721 + 125641681 = 36439^2 + 11209^2 .

It is a super-2 number, since 2×1453442402² = 4224989631863059208, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 363360599 + ... + 363360602.

Almost surely, 2^1453442402 is an apocalyptic number.

1453442402 is a deficient number, since it is larger than the sum of its proper divisors (726721204).

1453442402 is an equidigital number, since it uses as much as digits as its factorization.

1453442402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 726721203.

The product of its (nonzero) digits is 15360, while the sum is 29.

The square root of 1453442402 is about 38124.0396862662. The cubic root of 1453442402 is about 1132.7461861993.

Adding to 1453442402 its reverse (2042443541), we get a palindrome (3495885943).

The spelling of 1453442402 in words is "one billion, four hundred fifty-three million, four hundred forty-two thousand, four hundred two".